Smartwatches / Compare

OnePlus Watch 4 vs Samsung Galaxy Watch7

A

Product A: OnePlus

Watch 4

85 of 150 known

Change OnePlus Watch 4

Compare the Samsung Galaxy Watch7 with

Search smartwatches

B

Product B: Samsung

Galaxy Watch7

110 of 150 known

Change Samsung Galaxy Watch7

Compare the OnePlus Watch 4 with

Search smartwatches

All 150 fields

Every value links to where we found it.

Only differences

AOnePlus Watch 4

BSamsung Galaxy Watch7

General

7 of 10 differ

Series

Watch2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026OnePlus names the product OnePlus Watch 4, in the OnePlus Watch line.

Galaxy Watch1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

OPWWE2616Press articlegadgetsandwearables.com/2026/04/16/oneplus-watch-4Read 20 October 2026Leaked final retail box with the product name and model number OPWWE261, matching earlier certification listings. The importer data on the box names the UK, the EU and Poland. OnePlus does not list the model number on its own pages. The OnePlus UK PSTI page lists the Watch Lite as OPWWE262 and has no Watch 4 row.

SM-L300, SM-L300NZGAXAA2Maker product pagesamsung.com/us/watches/galaxy-watch7/buy/galaxy-watch7-40mm-green-wifi-bluetooth-sm-l300nzgaxaaRead 8 October 2026Exact selected US Green 40 mm Wi-Fi/Bluetooth SM-L300NZGAXAA. Physical model SM-L300. Same-SKU canonical redirect observed. Stock messages vary across purchase contexts, so lifecycle status is omitted.

GTIN / EAN

Not available

8872768689053Maker spec sheet (PDF)image-us.samsung.com/SamsungUS/business/solutions/industries/government/msrp-price-sheets/01152026/Samsung_Wearables_MSRP_Price_File_%28December_2025%29.pdfRead 8 October 2026Only page, exact SM-L300NZGAXAA Galaxy Watch7 BT 40 mm Green row gives UPC 887276868905. Shipping mass and revised MSRP are not used as device weight or launch price.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

22 April 20263Spec databasegsmarena.com/oneplus_watch_4-14622.phpRead 20 October 2026Launch: announced 2026, April 22.4Press articlegadgetsandwearables.com/2026/04/22/oneplus-watch-4-buyRead 20 October 2026Gadgets & Wearables, 22 April 2026: the watch is official and already listed on the OnePlus website. No price was given.

10 July 20241Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Status

Available3Spec databasegsmarena.com/oneplus_watch_4-14622.phpRead 20 October 2026Launch: Available. Released 2026, April.

Not available

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

OnePlus Watch 310Reviewnotebookcheck.net/OnePlus-Watch-4-New-Wear-OS-smartwatch-detailed-before-global-release.1275026.0.htmlRead 23 October 2026Notebookcheck's preview says the OnePlus Watch 4 is replacing the OnePlus Watch 3.

Samsung Galaxy Watch625Reviewgsmarena.com/samsung_galaxy_watch_ultra_and_galaxy_watch7_handson-news-63675.phpRead 23 October 2026GSMArena's hands-on calls the Galaxy Watch7 the successor to the regular Galaxy Watch6.

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Samsung Galaxy Watch826Reviewgsmarena.com/samsung_galaxy_watch8_and_galaxy_watch8_classic-review-2860p5.phpRead 23 October 2026GSMArena's review calls the Galaxy Watch7 the predecessor of the Galaxy Watch8.

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

$299.991Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026Original US starting launch price is 299.99 USD for 40 mm Bluetooth. Original July 2024 SKU sheet independently confirms selected Green SM-L300NZGAXAA. Later December 2025 revised MSRP 249.99 is excluded.4Maker spec sheet (PDF)image-us.samsung.com/SamsungUS/samsungbusiness/solutions/industries/government/msrp-price-sheets/08142024/Samsung_Wearables_MSRP_Price_File_July_2024.pdfRead 8 October 2026Original July 2024 maker MSRP row for exact SM-L300NZGAXAA Green 40 mm Bluetooth, 299.99 USD.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

€31919Press releasenews.samsung.com/de/samsung-erweitert-wearables-portfolio-intelligentes-gesundheitstracking-fur-alleRead 8 October 2026Original July 10 German announcement explicitly gives 40 mm Bluetooth launch MSRP 319 EUR and Green/Cream colors. Consumer VAT included. Regional health/warranty/shipping facts excluded.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

US2Maker product pagesamsung.com/us/watches/galaxy-watch7/buy/galaxy-watch7-40mm-green-wifi-bluetooth-sm-l300nzgaxaaRead 8 October 2026

ColoursiThe maker's own colour names

Midnight Titanium, Evergreen Titanium1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material: Midnight Titanium with a Fluororubber strap and Evergreen Titanium with a Mix-Fluororubber strap.

Green2Maker product pagesamsung.com/us/watches/galaxy-watch7/buy/galaxy-watch7-40mm-green-wifi-bluetooth-sm-l300nzgaxaaRead 8 October 2026

Segment

Smartwatch2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026The Overview presents a general smartwatch with sports and wellness modes. It has no outdoor, dive or sport-only positioning.

Smartwatch1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

OS updates promisediYears of explicitly promised OS updates. A security-only support period does not establish an OS-upgrade promise.

Not available

Not available

Security updates untiliExact end date published for security-update support of this model. Do not calculate it from a stated number of years. A security-only period does not promise OS upgrades.

Not available

Not available

Case

7 of 8 differ

Case sizeiMarketed case-size options. The marketed size can differ from physical case height, such as ceramic editions. Base dimensions describe the smallest base-material case.

47mm7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: only the 47 mm variant is on sale. The maker prints 47.4 mm and does not name a marketed size.

40mm1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026Only selected 40 mm reference. Other sizes and LTE editions excluded.

Case shape

Round4Press articlegadgetsandwearables.com/2026/04/22/oneplus-watch-4-buyRead 20 October 2026The article describes a premium watch with a round screen.

Round1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Case materialiMaterial of the housing body, not just the bezel. Use Mixed when the maker describes a mixture of housing/frame materials. Read the published-material field for the parts and proportions.

Titanium1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material, Case: Titanium alloy. The Overview calls it an all-titanium watch body.

Aluminium5Maker product pagesamsung.com/us/watches/galaxy-watch7Read 8 October 2026Current Watch7 column names Aluminum case and sapphire screen. Ultra titanium and Watch8 designs excluded.

Case material (as published)

Titanium alloy1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material, Case: Titanium alloy.

Armor Aluminum6Maker product pagesamsung.com/us/support/answer/ANS10003275Read 8 October 2026Watch7 Material row states AL (Armor Aluminum). Retail overview calls it Aluminum.

BackiMaterial of the back of the smallest base-material case. Other materials or regional editions can differ. See source notes.

PA with fiberglass1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material, Bottom case: PA with fiberglass.

Not available

Case dimensionsiPhysical case height, width and thickness. The source note states exclusions such as the heart-rate sensor protrusion.

Height47.4Width47.4Thickness11mm(1.9 × 1.9 × 0.4 in)1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Size and Weight, Dimensions: 47.4 x 47.4 x 11.0 mm. The page does not say whether the sensor area is included. The Overview text calls the 11 mm a diameter, which is the thickness.

Height40.4Width40.4Thickness9.7mm(1.6 × 1.6 × 0.4 in)1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 202640 mm specification row. Footnote 50 excludes health-sensor protrusion. This is not a maximum depth including the sensor.

Weight (case only)iWatch body without a strap. An unqualified published weight must not be assumed to exclude the strap.

43g(1.5 oz)1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Size and Weight: main part about 43 g without strap.

28.8g(1 oz)1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 202640 mm row 28.8 g, footnote 51 excludes band. Current US support comparison prints 28.9 g, while original US launch and exact SM-L300 technical table agree on 28.8 g. Supplied-band weight is not inferred.

Weight with strapiWatch with the stated strap attached. Strap material and case size belong in the source note. Reviewer measurements belong in measured fields.

68g(2.4 oz)1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Size and Weight: the whole machine is about 68 g with wrist strap.

Not available

Durability

3 of 8 differ

Water resistanceiStatic water-pressure rating in atmospheres. It is not a safe swimming or diving depth. Diving limits are listed separately.

5ATM1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Durability: 5ATM, IP69, IP68.

5ATM1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Water resistance standard

Not available

ISO 22810:201010Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 151 Watch7 section: ISO 22810:2010 static 5 ATM. Shallow pool/sea swimming. No dive depth conversion.

Dust and water rating

IP68, IP691Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Durability: 5ATM, IP69, IP68. Overview footnote 4: IP68 and IP69 under GB/T 4208-2017, tested at 1.5 m for 30 minutes and with high-temperature, high-pressure water jets. Not a rating for saltwater use or beach use.

IP681Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Dive rating

Not available

Not available

Max dive depthiMaker-rated depth for the stated diving use, not a conversion from the water-resistance pressure rating.

Not available

Not available

MIL-STD-810iMaker claim that the watch was tested against specified MIL-STD-810 methods. It is not a guarantee for every military-standard test.

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Durability: Military-grade certification MIL-STD-810H. Overview footnote 3: tested and certified for 16 items.2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Overview: built to MIL-STD-810H military-grade standards.

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026MIL-STD-810H maker claim. Footnote 56 documents the temperature cycle only, not every military-standard test.

MIL-STD-810 tests

Altitude, High temperature, Low temperature, Temperature shock, Solar radiation, Rain, Damp heat, Salt spray, Sand and dust, Immersion, Vibration, Shock, Temperature-humidity-altitude, Fluid contamination, Acidic atmosphere, Freezing rain2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Overview disclaimer 3 lists 16 items: altitude, high temperature, low temperature, temperature shock, solar radiation, rain, damp heat, salt spray, sand dust, immersion, vibration, shock, temperature-humidity-altitude, fluid contamination, acidic atmosphere and freezing rain.

Temperature cycling: -20 C for 1 hour and 50 C for 1 hour, repeated for 6 hours1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026Footnote 56 repeats -20 C (1 hour) and 50 C (1 hour), 6 hours total. Durability test, not normal operating temperature.

Operating temperatureiPublished operating range. Source notes identify on-wrist limits and other operating conditions. Storage or charging limits are excluded.

Min0Max35°C1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Durability: the product can operate normally within an ambient temperature range of 0 to 35 degrees, at 5 to 95 percent relative humidity without condensation. Military test extremes and charging limits are separate.

Min0Max35°C10Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 155 recommended operation 0-35 C. Durability test temperature range excluded.

Display

7 of 14 differ

Display type

LTPO OLED1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Display, Screen: LTPO OLED flexible display.

OLED1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Display type (as published)

LTPO OLED flexible display1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Super AMOLED1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Screen sizeiPublished active display diagonal for a rectangular display, or diameter for a round display. Do not calculate it from pixels or display area.

1.5in(3.8 cm)3Spec databasegsmarena.com/oneplus_watch_4-14622.phpRead 20 October 2026Display, Size: 1.5 inches. This fits 466 pixels at 310 ppi.

1.3in(3.3 cm)1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026Published 1.3 inches with 33.3 mm in parentheses for the round 40 mm display. No pixel-derived diameter or rounded-size conversion.

Resolution

466 × 466px1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Display, Resolution: 466 x 466 pixels.

432 × 432px1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Pixel densityiPublished pixel density. A rectangular diagonal formula must not be applied to a round display.

310ppi1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Display, PPI: 310 PPI. One reviewer prints 439 ppi, which does not fit 466 pixels on a 1.5 inch display.

330ppi6Maker product pagesamsung.com/us/support/answer/ANS10003275Read 8 October 2026Watch7 Display Resolution row explicitly pairs 432x432 with 330 PPI. Published 40 mm value, not a rectangular diagonal calculation.

Display area

Not available

Not available

Touchscreen

Yes2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Overview: wet-hand touch control.

Yes9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026

Max refresh rateiHighest published display refresh rate in active operation.

Not available

60Hz22Spec databasephonedb.net/index.phpRead 8 October 2026Exact Display > Display Refresh Rate 60Hz for SM-L300 40mm. Device-database specification, not photometer/oscilloscope measurement. AOD minimum refresh not stated.

Min refresh rateiLowest published display refresh rate, usually in always-on mode. It is not the active-use minimum unless stated.

Not available

Not available

Peak brightnessiMaker peak-brightness claim. It may apply to a small area or bright ambient light. Full-screen limits and battery/temperature conditions belong in source notes.

3,000nits1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Brightness: default maximum 600 nits typical, 1500 nits typical when activated in strong sunlight, and a peak of 3000 nits only in the official self-developed sports mode in strong sunlight. The stored 3000 nits is that conditional peak, not a full-screen or default figure.

2,000nits5Maker product pagesamsung.com/us/watches/galaxy-watch7Read 8 October 2026Up to 2000 nits maker peak claim. No measured screen area, ambient-light conditions or full-white test is published.

Minimum brightness

Not available

Not available

Always-on display

Yes2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Disclaimers 5 and 6 treat AOD as a setting that is off in the 5 day smart mode figure.

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Display cover

Sapphire1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Display, Cover glass: Sapphire Crystal.

Sapphire1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Display cover (as published)

Sapphire Crystal1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Sapphire Crystal1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Platform

12 of 15 differ

Platform

Wear OS1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Operating System: Android/Wear OS version Wear OS 6.0. One database says Wear OS 7.0, which the maker page does not.

Wear OS1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

OS at launch

Wear OS 6.01Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Operating System: Wear OS 6.0 with the OxygenOS Watch 8 watch version.

Wear OS 51Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026Launch Wear OS 5 and One UI 6 Watch. Current supported software recorded separately. Inconsistent older change-log AndroidWear labels do not replace launch evidence.

Software

OxygenOS Watch 81Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Operating System, Watch version: OxygenOS Watch 8.

One UI 8 Watch14Maker product pagedoc.samsungmobile.com/SM-L300/030217240731/eng.htmlRead 8 October 2026Current supported One UI 8 Watch, distinct from launch One UI 6. Exact OS 6 guide from October 2025 corroborates major software.

Latest OS

Not available

Wear OS 614Maker product pagedoc.samsungmobile.com/SM-L300/030217240731/eng.htmlRead 8 October 2026Exact SM-L300 One UI 8 upgrade October 20, 2025, AndroidWear 6.0. Current major support, not exact US XAA patch/rollout day. Model/region/provider can differ. Older inconsistent AndroidWear labels not used as launch version.

Works with

Android2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Disclaimer 5: pairing with the OHealth app, Android 9.0 and above with GMS 23.45.23 and above. iOS and Android (Go edition) are not supported.

Android1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Phone requirement

Android 9.0 or later with Google Mobile Services 23.45.23 or later and the OHealth app. iOS and Android Go are not supported.2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Disclaimer 5, shortened.

Android 11 or later with more than 1.5 GB RAM and Google Play services. Current Samsung Health Monitor additionally requires a compatible Galaxy phone with Android 12 or later.1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026Launch footnote 54: Android 11+, more than 1.5 GB memory, excluding Android Go and phones without Google Play. Current US Health Monitor requirements are Galaxy Android 12+.13Press releasesamsungmobilepress.com/articles/samsung-health-blood-pressure-monitoring-us-galaxy-watchRead 8 October 2026Current Galaxy Android 12+ Health Monitor requirements supplement generic Watch7 Android 11+ pairing baseline.

App store

Yes7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: Wear OS gives access to the Google Play Store.9Reviewbasic-tutorials.com/reviews/mobile-device-reviews/oneplus-watch-4-reviewRead 20 October 2026Review: the Play Store with watch apps is available.

Yes9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026

Voice assistants

Gemini, Google Assistant1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Voice assistant: Gemini/Google Assistant.

Bixby, Google Gemini10Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 120 Google apps lists Gemini, with model/carrier/region limits. Current Google guide independently supports Wear OS 4+, connected eligible Android phone with Gemini as assistant and Play Store install. Bixby in original US guide. Supported app capability, not guaranteed out-of-box/account availability.15Maker product pagesupport.google.com/gemini/answer/16401122Read 8 October 2026Wear OS 4+, connected Android phone, eligible language/region, Gemini as phone digital assistant. Install watch app from Play Store if needed. Gradual availability applies. Model OS 6 manual lists Gemini. No launch Gemini or every-account availability claim.

Chipset

Qualcomm Snapdragon W51Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Chip and Storage, Processor: Qualcomm Snapdragon W5 Processor and BES 2800. The Overview names a Dual-Engine Architecture.

Samsung Exynos W10001Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Process

4nm3Spec databasegsmarena.com/oneplus_watch_4-14622.phpRead 20 October 2026Platform, Chipset: Qualcomm Snapdragon W5 Gen 1 (4 nm). The BES2800 coprocessor is not this node.

3nm1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

CPU cores

Not available

51Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

CPU configuration

AOnePlus Watch 4

Not available

BSamsung Galaxy Watch7

Count	Core	Max clock (GHz)
1	Cortex-A78	1.6
4	Cortex-A55	1.5

Source7Maker product pagesamsung.com/uk/business/watches/galaxy-watch/galaxy-watch7-40mm-green-bluetooth-sm-l300nzgaeuaRead 8 October 2026Exact SM-L300 CPU Speed 1.6 GHz and 1.5 GHz, Penta-Core. Exynos W1000 maker page metadata independently names one Cortex-A78 and four Cortex-A55. Actual device clocks confirmed before mapping cores.8Maker product pagesemiconductor.samsung.com/processor/wearable-processor/exynos-w1000Read 8 October 2026Page metadata explicitly names Cortex-A78 1.6 GHz Single-core and Cortex-A55 1.5 GHz Quad-core. Exact watch table independently confirms clocks/core count. Other chip capabilities not inferred.

Max CPU clock

Not available

1.6GHz=CalculatedFrom CPU configuration

GPU

Not available

ARM Mali-G68 MP222Spec databasephonedb.net/index.phpRead 8 October 2026Exact Graphical Subsystem > Graphical Controller names ARM Mali-G68MP2. No GPU clock or desktop compute-unit equivalence inferred.

Low-power coprocessor

BES28001Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Chip and Storage: BES 2800 next to the Snapdragon W5. The Overview calls the pair a dual-engine architecture.

Not available

Memory

0 of 2 differ

RAMiKeep published GB values as stated. Convert a source explicitly labelled MB using 1000 MB per GB and preserve its original figure and unit in the note. Do not assume MB means MiB. Convert explicit MiB or GiB to decimal GB through their byte definitions, recording the conversion in the note. This normalization does not establish an exact physical byte count.

2GB1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Chip and Storage, Storage: RAM 2GB.

2GB1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

StorageiTotal built-in storage the maker states, in decimal GB. Space available to the user is lower and goes in the source note. A figure the maker gives only as available space is not stored.

32GB1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Chip and Storage, Storage: ROM 32GB. Total storage, user space is not stated.

32GB1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Health sensors

4 of 8 differ

Heart rate sensor

Optical heart rate sensor1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Sensor: optical heart rate sensor. The channel count is not stated.

Samsung BioActive Sensor1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

ECG capabilityiElectrical heart sensing hardware with an ECG capability. The ECG app can require an eligible country, age and paired phone.

Yes2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Disclaimer 8: the activation time of the ECG function in the 60s Wellness Overview depends on the progress of local ECG function certification and registration. The sensor list on the Specs page names no separate electrical sensor.7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: ECG is listed as a measurement and is enabled in Germany. The review sample was tested in Germany. Another review says the ECG is part of the 60 second check and is not an independent app.

Yes12Maker product pagesamsung.com/us/apps/samsung-health-monitorRead 8 October 2026US current Health Monitor: compatible Galaxy Watch, paired Galaxy phone, latest software/app. ECG/IHRN age 22+, regional purchase/service and stated medical exclusions. Current Galaxy Android 12+ requirements separately documented.

Blood oxygen sensingiBlood-oxygen sensing capability. App availability and medical status vary by market.

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Sensor: optical blood oxygen sensor. Health and Workout: manual SpO2, all-day SpO2 tracking and low SpO2 indicators.

Yes12Maker product pagesamsung.com/us/apps/samsung-health-monitorRead 8 October 2026Watch blood oxygen app and overnight readings, supported by exact manuals and US launch/current pages. Wellness measurements.

Skin temperature sensingiA sensor or supported function that measures skin temperature. It is not a core-body thermometer.

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Sensor: wrist temperature sensor. Health and Workout: wrist temperature monitoring supported.

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Blood pressure featureiPublished blood-pressure feature category. Hypertension notifications are not numerical blood-pressure readings.

Not available

Calibrated with a cuff13Press releasesamsungmobilepress.com/articles/samsung-health-blood-pressure-monitoring-us-galaxy-watchRead 8 October 2026US phased rollout March 31, 2026. Watch4+ excluding Fit, Wear OS 4+, paired Galaxy phone Android 12+, Health Monitor and upper-arm cuff calibration initially/every 28 days. Wellness estimate, not diagnosis/FDA claim. Future passive trends not stored. No foreign minimum age transferred.

Body composition sensor

Not available

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Skin conductance (EDA)

Not available

Not available

Medical clearancesiNamed regulatory clearances and their jurisdiction. General water resistance or an ECG sensor does not establish medical clearance.

Not available

FDA De Novo authorization for Sleep Apnea feature, FDA clearance for ECG Monitor and Irregular Heart Rhythm Notification1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026Exact Watch7 launch text identifies De Novo FDA-authorized Sleep Apnea feature. Applies to this software and its eligible host/watch conditions, not every health sensor or blood-pressure function.13Press releasesamsungmobilepress.com/articles/samsung-health-blood-pressure-monitoring-us-galaxy-watchRead 8 October 2026March 31 2026 US statement explicitly names FDA authorization for Sleep Apnea and FDA clearance for ECG readings and irregular heart rhythm notifications. BP uses cuff-calibrated wellness estimates. FDA language is not transferred to BP.

Motion and environment sensors

0 of 9 differ

Accelerometer

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Accelerometer range

Not available

Not available

Gyroscope

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Barometric altimeter

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Sensor: air pressure sensor.

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Compass

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Sensor: geomagnetic sensor.

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Ambient light sensor

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Depth gauge

Not available

Not available

Depth gauge rangeiPublished measurement range of the depth gauge, distinct from maximum diving depth and water-pressure resistance.

Not available

Not available

Water temperature sensor

Not available

Not available

Health and fitness

2 of 5 differ

Health featuresiSupported health functions with country, phone and subscription restrictions in the source notes. Upcoming functions are not counted as available.

Continuous heart rate, Heart rate alerts, Blood oxygen app, Sleep tracking, Stress tracking, Cycle tracking1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Health and Workout: heart rate monitoring with high and low alerts, resting heart rate, sleep quality assessment, manual and all-day SpO2 and Cycle Tracker. Stress tracking is from the review sources. The 60s Wellness Overview and the ECG function depend on local certification and are not stored as an ECG app.7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review lists pulse, SpO2, skin temperature, sleep, stress and altitude as measured values. ECG is enabled in Germany.

Continuous heart rate, Heart rate alerts, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Readiness score, Cycle tracking, Temperature-based ovulation, Body composition, ECG app, Irregular rhythm notifications, Sleep apnea notifications10Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Continuous HR is an optional setting, not default. Energy score is readiness-style advice. Cycle predictions use overnight skin temperature. Current US ECG/IHRN/sleep-apnea restrictions separately cited. Global BP permissions are not transferred. US overview explicitly supports sleeping HRV.11Maker product pagesamsung.com/us/watches/galaxy-watch7Read 8 October 2026Current US Sleep Coach passage names sleep stages and sleeping HRV. Energy score, BIA and temperature-based cycles/ovulation supported. Cycle predictions require age 18+ and are not intended for contraception. Hormonal birth control or treatment that inhibits ovulation makes this service unsuitable. Maker recommends overnight wear for at least 4 hours, 5 times a week. Regulated health eligibility is separately qualified.13Press releasesamsungmobilepress.com/articles/samsung-health-blood-pressure-monitoring-us-galaxy-watchRead 8 October 2026ECG/IHRN/sleep-apnea age 22+ and current Galaxy phone/app/software restrictions explicit. IHRN is opportunistic. Country/region purchase/service restrictions apply.

Fitness featuresiSupported workout functions. A sport-profile name alone does not prove advanced metrics such as running power or running dynamics. Trackback follows the recorded route back to the start. A compass arrow that points straight to the start does not count.

Automatic workout detection, Recovery advice, Running dynamics, Running power, Pool swim1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Health and Workout: 6 types of automatic recognition (running, walk, cycling, swimming, rowing machine, elliptical machine), recovery time, indoor swimming as a professional mode, and running footnote 11 naming vertical ratio and running power data. Open water swimming is announced for a later OTA update and is not stored. Aerobic training effect and cardiopulmonary capacity are listed but are not stored as VO2 max.2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Disclaimer 10: professional sport mode for 11 sports including running, skiing, tennis, badminton, indoor swimming, jump rope, hiking, walking, cycling, elliptical and rowing. Disclaimer 11: running data such as vertical ratio and running power are not available in indoor runs, which means they exist for outdoor runs. A pacer function and lactate threshold monitoring are named as advanced running features.9Reviewbasic-tutorials.com/reviews/mobile-device-reviews/oneplus-watch-4-reviewRead 20 October 2026Review: the professional running mode gives step frequency, vertical oscillation, ground contact time and cadence. It also lists 11 professional sports modes and a pace assistant.

Automatic workout detection, Pool swim, Open water swim, Strength rep counting, Interval workouts10Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Pages 53-64: auto detection, Pool swim, Open water swim, repetition counts and interval routines. Track back on page 62 is Ultra-only and excluded. Over 100 workouts is not an exact count. No unproved VO2 max/training-load/running-power feature transferred.

Sport profilesiPublished count of distinct sport/activity profiles. A claim such as 180+ is not an exact integer count.

Not available

Not available

Dive modesiActual supported dive modes. Water resistance or a depth app alone does not establish decompression-capable scuba support.

Not available

Not available

External sensorsiTypes of external workout sensors the watch can pair with. GPS reception, phone data and built-in sensors do not qualify.

Not available

Not available

Safety

2 of 6 differ

Fall detectioniAutomatic fall detection. Incident detection restricted to recorded workouts is not counted as general fall detection.

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Health and Workout, Emergency Rescue: Fall Detection. The page does not say who is notified.

Yes9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 66 configured hard fall detection calls emergency contact. Paired-phone call/data connectivity required for Bluetooth reference.

Car crash detection

Not available

Not available

Emergency SOSiA manual emergency alert to emergency services or preset contacts. Source notes identify the recipient, paired-phone requirement and country limits. Satellite is listed separately.

Not available

Yes9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 66 Home button five presses, configured emergency contact SOS. Current model manual permits selected emergency number and location sharing. Bluetooth reference requires paired compatible phone/network.

Emergency sireniPublished or measured siren sound level in decibels. Audible distance alone does not establish this value. Measurement distance belongs in source notes.

Not available

Not available

Live location sharingiShares live location during supported use. A paired phone or data subscription may be required.

Not available

Yes9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Emergency location sharing to configured contacts. Current OS 6 manual says location sent continuously after SOS. Not a general sports-tracking claim.

Dedicated LED flashlightiA dedicated hardware LED flashlight. Lighting the display white is not counted.

Not available

Not available

Positioning

1 of 3 differ

PositioningiPublished satellite systems and signal bands. Do not infer bands from dual-frequency support alone.

GPS (L1 + L5), BeiDou, Galileo, GLONASS, QZSS1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026GNSS: Dual band L1+L5: Beidou, GPS, Galileo, GLONASS, QZSS. The band applies to the group as printed.

GPS (L1+L5), GLONASS, BeiDou, Galileo1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026GPS L1+L5 explicitly named, with GLONASS, BeiDou and Galileo. Other constellation signal bands unknown.

Dual-band GNSSiMaker-stated dual-frequency satellite reception. Supported constellations and signal bands are listed separately.

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026GNSS: Dual band L1+L5.

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Offline mapsiMap data stored on the watch and usable without live phone data. GPX routes or breadcrumb tracks alone are not offline maps.

Not available

Not available

Connectivity

3 of 15 differ

BluetoothiPublished Bluetooth support for this model. The version is recorded separately. Unknown version does not mean the radio is absent.

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Yes7Maker product pagesamsung.com/uk/business/watches/galaxy-watch/galaxy-watch7-40mm-green-bluetooth-sm-l300nzgaeuaRead 8 October 2026

Bluetooth version

5.21Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Bluetooth: Bluetooth 5.2.

5.31Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Wi-FiiPublished Wi-Fi support for this model. The standard and bands are recorded separately. Unknown standard does not mean Wi-Fi is absent.

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Yes7Maker product pagesamsung.com/uk/business/watches/galaxy-watch/galaxy-watch7-40mm-green-bluetooth-sm-l300nzgaeuaRead 8 October 2026

Wi-Fi standard

Not available

Wi-Fi 47Maker product pagesamsung.com/uk/business/watches/galaxy-watch/galaxy-watch7-40mm-green-bluetooth-sm-l300nzgaeuaRead 8 October 2026Exact SM-L300 40 mm Bluetooth hardware table: 802.11a/b/g/n, 2.4+5 GHz. Matches original US model hardware. Regional clinical permissions, prices and warranty are excluded.

Wi-Fi bands

2.4 GHz, 5 GHz1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Wi-Fi: WLAN 2.4G/5G. The standard is not stated.

2.4 GHz, 5 GHz1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

CellulariTrue when a cellular edition is sold. A variant row states whether that individual model has cellular hardware.

No1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026eSIM: Unsupported. No LTE model is listed.

No2Maker product pagesamsung.com/us/watches/galaxy-watch7/buy/galaxy-watch7-40mm-green-wifi-bluetooth-sm-l300nzgaxaaRead 8 October 2026Exact US purchase identity and SKU sheet explicitly identify Bluetooth hardware. Family LTE instructions apply to SM-L305/SM-L315 and are excluded.

Network

Not available

Not available

4G bandsiPublished LTE bands for the stated regional cellular model. Do not transfer bands to another region or Wi-Fi-only model.

Not available

Not available

5G bandsiPublished 5G NR bands for the stated regional cellular model. RedCap support does not establish conventional full-bandwidth phone 5G.

Not available

Not available

NFCiSome regions sell an NFC edition, so it is per variant.

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026NFC: Supported.

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Contactless payments

Yes1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026

Yes9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026

Payment services

Google Wallet1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Mobile Payment: Google Wallet.

Samsung Wallet9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 31 Samsung Wallet. Supported cards/services and setup required. No all-bank/all-market guarantee.

Ultra-wideband

Not available

Not available

Satellite

Not available

Not available

ANT+

Not available

Not available

Audio

0 of 4 differ

Speaker

Yes3Spec databasegsmarena.com/oneplus_watch_4-14622.phpRead 20 October 2026Sound, Loudspeaker: Yes. Smartwatch review sources confirm a speaker.

Yes10Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Same exact Watch7 page 7 device figure explicitly labels speaker.

Microphones

18Reviewprofesionalreview.com/2026/06/01/oneplus-watch-4-review/ampRead 20 October 2026Review of the underside: a microphone on the right side and a speaker opening on the left side, with four charging contacts. The review names one microphone.

110Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Printed page 7 complete Watch7 layout labels one microphone and separately labels pressure vent/speaker. Figure explicitly names SM-L300 and was visually checked. Two-microphone Ultra diagram excluded.

Calls on the watchiVoice-call capability of the marketed model, including sold cellular editions. Variant radio capability and paired-phone requirements still apply.

Phone only7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: you can only make calls when the phone is nearby. There is no eSIM.

Phone only9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Paired-phone calls for Bluetooth SM-L300. Family manual LTE activation instructions excluded.

Music on the watchiPlays audio stored on the watch. Remote control of phone playback or streaming alone does not qualify.

Yes7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: music storage on the 32 GB and native offline playback with Spotify from the Play Store.

Yes9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 37 stored watch tracks. Galaxy Wearable Content settings transfers music. Phone-media remote control is distinct.

Controls

5 of 5 differ

ButtonsiPhysical controls used to operate the watch, excluding the rotating crown and strap-release buttons. A clickable rotating crown is counted only in Crown.

17Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: the rotating knob is not counted. One extra Workout button. The Spanish review describes an upper wheel and a lower flat button.8Reviewprofesionalreview.com/2026/06/01/oneplus-watch-4-review/ampRead 20 October 2026Review: two controls on the right side. An upper wheel and a lower flat button.

29Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Printed page 6 Watch7 figure: Home and Back. Ultra Quick button excluded.

Named operating buttonsiNames of operating buttons, excluding the crown and strap-release controls.

Workout button7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: the additional Workout button. The Spanish review says the lower button opens the sport list.

Home button, Back button9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026

CrowniA crown that rotates to control the interface. A round push button that does not rotate is not a crown.

Rotating7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: rotating and pressable knob plus an extra workout button. The Spanish review also describes a metal wheel that turns and presses. Haptic feedback is not stated.8Reviewprofesionalreview.com/2026/06/01/oneplus-watch-4-review/ampRead 20 October 2026Review: the upper right button is a metal wheel that turns and presses.

None10Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Two push buttons in complete layout, no rotating crown. Touch bezel separate.

Rotating bezeliPhysical rotation or touch gestures around the display edge. A fixed decorative bezel is None.

Not available

Touch10Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 26 Touch bezel describes swiping screen edge, not physical case rotation.

Gestures

Raise wrist to wake7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: the display wakes when the wrist is turned.

Double pinch, Shake to dismiss, Knock knock10Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Buttons and gestures pages 127-129. Context, settings and app restrictions apply.

Battery and charging

9 of 13 differ

Battery capacityiPublished battery capacity for the stated case size. Rated and typical capacity are distinguished in source notes.

646mAh1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Battery Life, Battery capacity: 646 mAh typical and 632 mAh rated. The typical figure is stored because it is the number used in the maker's and reviewers' headline.

300mAh1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026Typical 300 mAh for 40 mm. Footnote 52 gives IEC 61960 sample-average conditions. The 425 mAh 44 mm battery is excluded.

Claimed battery lifeiMaker endurance claims with distinct operating modes and case sizes. With solar describes augmentation of that estimate, not hardware capability. Use false for ordinary claims without solar augmentation, true for explicitly solar-aided claims, and omit it when solar qualification is unclear. Source notes state AOD, GNSS, music and solar conditions. Do not create a normal-use row from an AOD-only claim. Low power denotes the maker battery-saver mode. Keep its typical, light-use and always-on claims separate from standard-mode claims. GPS power saving identifies an intermediate reduced-accuracy GNSS saving preset. Source notes retain the maker's preset name and published conditions. Max battery GPS is the distinct maximum-saving claim. When the maker has only one GPS saving preset, it is GPS power saving.

AOnePlus Watch 4

Mode	With solar	Hours (h)
Smartwatch	No	120
Heavy use	No	72
Low power	No	384

Source1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Battery Life: 5 days in smart mode, 3 days for heavy use and 16 days in power saver mode. Days are stored as hours. Overview footnote 6 says the 5 days use the official watch face, AOD off, default health monitoring, 220 wrist raises, 130 messages, 20 minutes of screen use, 30 minutes of outdoor running and 15 minutes of music per day. Footnote 7 says the 16 days use all-day Bluetooth, 90 minutes of outdoor workouts a week, 180 wrist raises and 180 messages a day, and 6 hours of sleep detection.2Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026Overview: 5 days in smart mode and 16 days in power-saver mode. Disclaimer 6 gives the 5 day usage case with AOD off. Disclaimer 7 gives the 16 day usage case.

BSamsung Galaxy Watch7

Mode	With solar	Hours (h)
Smartwatch	No	40
Always-on	No	30

Source7Maker product pagesamsung.com/uk/business/watches/galaxy-watch/galaxy-watch7-40mm-green-bluetooth-sm-l300nzgaeuaRead 8 October 2026Exact 40 mm Bluetooth technical table: up to 40 h AOD off, 30 h AOD on. Internal typical-usage lab estimates. Actual use/model/network conditions vary. No 44 mm, LTE or GNSS-specific runtime transferred.

Smartwatch mode (claimed)iMaker normal-use smartwatch claim without solar. A watch with only an explicit AOD-mode claim has no value here. Workloads differ and source notes must be read.

120h=CalculatedFrom Claimed battery life

40h=CalculatedFrom Claimed battery life

AOD battery life (up to)iMaker claimed smartwatch endurance with the always-on display enabled and without solar, for the base case. Source notes preserve workload and case conditions. This is a claim, not a measured test or an AOD-off estimate.

Not available

30h=CalculatedFrom Claimed battery life

GPS mode (claimed)iMaker regular GPS/GNSS activity claim without solar, for the base case. AOD, multi-band, music and power-saving conditions have separate rows when published.

Not available

Not available

Solar chargingiPublished solar charging hardware capability. An ordinary battery estimate without solar augmentation does not prove that the watch lacks solar charging hardware.

Not available

Not available

Charging methodiThe connection at the watch, not the cable end at the USB adapter. A proprietary inductive puck is not Qi unless interoperability is explicitly established.

Not available

Proprietary wireless charger9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Pages 7-8 supplied wireless cable. WPC-based charging and magnetic attachment do not establish generic Qi interoperability.

Charging guidanceiPublished charging requirements, nominal estimates and compatibility guidance. Keep adapter ratings separate from power accepted by the watch.

Not available

Use the supplied Samsung wireless charging cable with a compatible Samsung USB power adapter. The wall adapter is sold separately. Adapter guidance does not establish power accepted by the watch.9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 8: wall charging head not included. Samsung chargers rated 5 V with output current over 150 mA recommended. No adapter rating stored as watch maximum power.

Max charging power (watch)iPublished maximum charging power at the watch. Adapter rating or charger input power does not prove the power accepted by the watch.

7.5W1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Battery Life, Max charging power: about 7.5 W. Stored as a maker figure for the watch.

Not available

Fast chargingiAn explicit fast-charging capability claim. A short charging time or high adapter wattage alone does not qualify.

Not available

Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Quick charge claimiMaker claim for usage from a short charge. Source notes identify the usage workload, such as normal use or sleep tracking.

Not available

Not available

Charge 0 to 80% (claimed)iMaker claim for charging an empty battery to 80%. Charger and approximate qualifiers belong in source notes.

Not available

Not available

Full charge time (claimed)iMaker advertised nominal full-charge duration. Approximate or theoretical maker estimates are allowed, with their conditions in source notes. Partial-charge intervals do not qualify. Measured 0 to 100% tests have a separate field.

75min1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Battery Life, Max charging time: about 75 minutes. The page does not name the charger or the start level.

Not available

Measured

2 of 4 differ

Peak brightness (measured)iReviewer measurement. Source notes state screen area, mode and ambient light. A small-area peak claim cannot be replaced with a full-screen measurement.

Not available

Not available

Battery life (measured)iReviewer-observed mixed-use endurance. Source notes state case size, AOD, workout use and whether it was a complete discharge. Extrapolation from partial discharge is excluded.

Not available

24h20Reviewtomsguide.com/wellness/smartwatches/samsung-galaxy-watch-7-reviewRead 8 October 2026Dan Bracaglia tested 40 mm and observed roughly 24 h with default power settings, AOD on and limited-health-features off, paired Galaxy S24. Original underside photo engraves SM-L300 and 40mm, proving Bluetooth hardware. Green Sport S/M visible. Firmware, workout duration/GPS mode unstated. Observed duration, not percentage projection.21Reviewcdn.mos.cms.futurecdn.net/WQwMkh9DQr7jWMWXoanBnD.jpgRead 8 October 2026Original same-review underside photo credited Dan Bracaglia. Engraved SM-L300 and 40mm visually read. This identifies Bluetooth test hardware. Green Sport S/M strap matches reference.

Battery tests (measured)iReviewer-observed endurance, with case size and test settings in source notes. Partial-discharge projections are not stored as measured endurance.

AOnePlus Watch 4

Not available

BSamsung Galaxy Watch7

Test	Hours (h)
Mixed use, always-on	24
Other	40

Source20Reviewtomsguide.com/wellness/smartwatches/samsung-galaxy-watch-7-reviewRead 8 October 2026Same exact SM-L300 40 mm test: ~24 h AOD normal use and 40 h power-save. Power-save disables AOD/Wi-Fi/wake gesture and other functions, so 40 h is Other, not normal AOD-off endurance. No 44 mm/LTE transfer. About two-hour full charge lacks stated empty-start endpoint, so measured charging time omitted.21Reviewcdn.mos.cms.futurecdn.net/WQwMkh9DQr7jWMWXoanBnD.jpgRead 8 October 2026Physical test identity proof. Duration/settings come from exact review battery section.

Full charge time (measured)iReviewer measurement from empty to full, not 0-80% or a charge from 5%. Source notes name the charger and case size.

Not available

Not available

Strap

6 of 6 differ

Lug widthiDistance between standard strap attachment lugs, not the decorative width of a proprietary strap. Unknown for custom connectors unless the maker publishes lug width.

22mm7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: the supplied strap uses a standard 22 mm attachment, so it is easy to change.

20mm17Maker product pagesamsung.com/de/support/mobile-devices/armband-deiner-galaxy-watch-wechselnRead 8 October 2026Maker Watch7/older quick-release compatibility guidance states 20 mm interface. This is lug attachment, not decorative 22.5 mm overall Sport Band width. Model manual shows spring-bar attachment.23Maker product pagesamsung.com/ae/support/mobile-devices/what-are-the-size-material-and-color-options-for-galaxy-watch7-and-galaxy-watch-ultraRead 8 October 2026Exact Watch7 Small 40mm row: Band 20mm S/M (Sport Band, HNBR, One Click), Green band. Nominal supplied-band attachment matches selected US Green Sport S/M package. Region-specific availability and prices excluded.

Quick-release strapiThe supplied strap can be detached through its quick-release mechanism. Compatibility with quick-release replacement straps alone does not qualify.

Not available

Yes9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Page 11 supplied band release button removes/attaches band without tools. Ultra connector differs.

Strap systemiPublished attachment system and compatible case sizes. Proprietary connectors are distinguished from standard spring bars.

Standard 22 mm watchbands7Reviewsmartzone.de/oneplus-watch-4-im-testRead 20 October 2026Review: standard 22 mm attachment.

20 mm quick-release spring-bar straps with Samsung one-click band release17Maker product pagesamsung.com/de/support/mobile-devices/armband-deiner-galaxy-watch-wechselnRead 8 October 2026Maker distinguishes Watch7 quick-release/spring bars from Watch8/Ultra Dynamic Lug. Selected band uses one-click release.

Strap materialiMaterial of the supplied strap for the stated package. Do not substitute material from another band sold separately.

Fluoroelastomer1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material, Strap: Fluororubber on Midnight Titanium and mixed fluororubber on Evergreen Titanium. Fluororubber is stored as fluoroelastomer.

Hydrogenated nitrile butadiene rubber (HNBR)16Maker product pagenews.samsung.com/in/user-guide-discover-the-best-fit-with-galaxy-watch-ultra-and-galaxy-watch7-bandsRead 8 October 2026Sport Band section explicitly names HNBR, ripple design and orange/light-blue stitching, with Green among colors. Exact selected US package names Green Sport S/M and matches photographed strap. No generic silicone assumption.23Maker product pagesamsung.com/ae/support/mobile-devices/what-are-the-size-material-and-color-options-for-galaxy-watch7-and-galaxy-watch-ultraRead 8 October 2026Exact Small 40mm Green Sport S/M row explicitly says HNBR. No decorative width or aftermarket strap material substituted.

Strap

Not available

Green Sport Band (Small/Medium)2Maker product pagesamsung.com/us/watches/galaxy-watch7/buy/galaxy-watch7-40mm-green-wifi-bluetooth-sm-l300nzgaxaaRead 8 October 2026Selected Sport, Green, Small/Medium package. Ripple band with orange/light-blue stitching matches exact SM-L300 support image.

Strap sizesiPublished wrist-circumference range for the stated strap or case. Source notes distinguish an overall compatible wrist range from one supplied strap size.

AOnePlus Watch 4

Wrist (min) (mm)	Wrist (max) (mm)
140	210

Source1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026Design and Material, Wrist size: 140 mm-210 mm. This is the range of the supplied strap.

BSamsung Galaxy Watch7

Size	Wrist (min) (mm)	Wrist (max) (mm)
Small/Medium	130	190

Source2Maker product pagesamsung.com/us/watches/galaxy-watch7/buy/galaxy-watch7-40mm-green-wifi-bluetooth-sm-l300nzgaxaaRead 8 October 2026Selected supplied Sport Small/Medium is 130-190 mm. Other straps and broad aftermarket compatibility ranges excluded.

Regulatory

1 of 3 differ

FCC ID

Not available

A3LSML30024Regulatory filingfccid.io/A3LSML300Read 8 October 2026FCC grant and application explicitly identify Samsung SML300, A3LSML300. Exact maker OS 6 manual labels Bluetooth Watch7 SM-L300, and US selected SKU starts SM-L300. Original e-label document title ID Label and Location SM-L300 corroborates hardware model. LTE SM-L305 and 44 mm SM-L310 are excluded.

SAR limb (US)iPublished limb/wrist SAR for the stated base regional model under the US regime. Other case sizes or radio versions can differ. Head or body SAR is excluded.

Not available

0.33W/kg24Regulatory filingfccid.io/A3LSML300Read 8 October 2026US FCC grant publishes maximum extremity SAR under simultaneous transmission of 0.33 W/kg averaged over 10 g. This is the stated wrist/limb exposure condition.

SAR limb (EU)iPublished limb/wrist SAR for the stated base regional model under the EU regime. Other case sizes or radio versions can differ. Head or body SAR is excluded.

Not available

Not available

Other certifications

Not available

Not available

In the box

1 of 2 differ

In the box

Watch body, Charging base, Strap, USB-C charging cable, User Guide & Safety and Warranty Booklet1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026In The Box: watch body, charging base, strap, USB-C charging cable, user guide and safety and warranty booklet.

Galaxy Watch7 (40 mm Green Bluetooth), Green Sport Band (Small/Medium), Wireless charging cable18Maker product pagesamsung.com/us/support/troubleshoot/TSG10003540Read 8 October 2026Model-specific US complete box article: watch, band and wireless charger. Selected band identity from exact purchase page. Promotional extras excluded.

Power adapter in boxiA mains/USB power adapter is supplied. A charging cable, inductive puck or charging dock alone does not count.

No1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026In The Box lists a charging base and a USB-C charging cable and no power adapter.

No18Maker product pagesamsung.com/us/support/troubleshoot/TSG10003540Read 8 October 2026Article explicitly states wall chargers sold separately. Wireless charging cable does not count as mains/USB power adapter.

Links

Not compared

Product page

www.oneplus.com/global/oneplus-watch-42Maker product pageoneplus.com/global/oneplus-watch-4Read 20 October 2026OnePlus Watch 4 overview page on the global site.

www.samsung.com/us/watches/galaxy-watch7/buy/galaxy-watch7-40mm-green-wifi-bluetooth-sm-l300nzgaxaa2Maker product pagesamsung.com/us/watches/galaxy-watch7/buy/galaxy-watch7-40mm-green-wifi-bluetooth-sm-l300nzgaxaaRead 8 October 2026

Spec sheet

www.oneplus.com/global/oneplus-watch-4/specs1Maker product pageoneplus.com/global/oneplus-watch-4/specsRead 20 October 2026OnePlus Watch 4 Specs page on the global site. The values sit in the page data, grouped as Design and Material, Size and Weight, Display, Brightness, Chip and Storage, Battery Life, Operating System and others.

news.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-data1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 8 October 2026

Manual

Not available

org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx9Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Original English North America guide Version 1.0, linked from exact SM-L300NZGAXAA support Manual and Software modal. LTE/Ultra-only hardware instructions excluded.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

Not available

1year2Maker product pagesamsung.com/us/watches/galaxy-watch7/buy/galaxy-watch7-40mm-green-wifi-bluetooth-sm-l300nzgaxaaRead 8 October 2026Official Samsung brand response on the US maker purchase page, dated January 24, 2025, explicitly states a 12-month warranty for manufacturing defects in materials and workmanship. Response is to the same Watch7 40 mm Bluetooth family in Cream. It is a general product warranty, not a color-specific promotion. Optional Samsung Care+ and retailer extensions are separate. Exact US SKU price-sheet Warranty 365 is corroboration, not the unit-defining source.

Both are also in the API. Back to all smartwatches.