Smartwatches / Compare
Samsung Galaxy Watch Ultra vs Samsung Galaxy Watch9
Product A: Samsung
87 of 150 known
Change Samsung Galaxy Watch Ultra
Product B: Samsung
93 of 150 known
Change Samsung Galaxy Watch9
Compare the Samsung Galaxy Watch Ultra with
50 of 141 fields differ
- 30 different values
- 20 known for one only
- 45 the same
- 46 missing for both
Biggest differences
Each bar uses the scale of all 101 smartwatches.
- Water resistanceA: 10ATMB: 5ATMGalaxy Watch Ultra is 5 ATM higher.
Size, drawn to scale
Front and side.
- AGalaxy Watch Ultra: 47.1 × 47.4 mm
- BGalaxy Watch9: 40.4 × 42.7 mm
Weight
0 to 80 g
Weight (case only)
A60.5g
B31.5g
All 150 fields
Every value links to where we found it.
General
7 of 10 differ
Series
Model numbers
SM-L705UDAAXAA, SM-L705UZWAXAA, SM-L705UZTAXAA4Maker spec sheet (PDF)image-us.samsung.com/SamsungUS/samsungbusiness/solutions/industries/government/msrp-price-sheets/08142024/Samsung_Wearables_MSRP_Price_File_July_2024.pdfRead 10 October 2026July 2024 price file: SM-L705UDAAXAA Titanium Gray, SM-L705UZWAXAA Titanium White, SM-L705UZTAXAA Titanium Silver. Galaxy Watch Ultra LTE, New, $649.99.
SM-L340, SM-L345F, SM-L345U, SM-L350, SM-L355F, SM-L355U4Maker product pagesamsung.com/us/watches/galaxy-watch9/buyRead 30 September 2026US codes SM-L340N, SM-L345U, SM-L350N, SM-L355U. EU codes SM-L340N, SM-L345F, SM-L350N, SM-L355F on the Samsung EU store
GTIN / EAN
887276873039, 887276866468, 8872768664754Maker spec sheet (PDF)image-us.samsung.com/SamsungUS/samsungbusiness/solutions/industries/government/msrp-price-sheets/08142024/Samsung_Wearables_MSRP_Price_File_July_2024.pdfRead 10 October 2026UPC 887276873039 (Gray), 887276866468 (White), 887276866475 (Silver).
Not available
Announced
Status
Not available
Predecessor
Not available
Successor
Samsung Galaxy Watch Ultra28Reviewgsmarena.com/the_galaxy_watch_ultra2_is_slimmer_and_has_a_huge_battery_watch9_arrives_in_40mm_and_44mm_sizes-news-73831.phpRead 23 October 2026GSMArena says the Galaxy Watch Ultra2 is 12% slimmer than its predecessor, at 10.7 mm against 12.1 mm.9Press releasenews.samsung.com/global/samsung-galaxy-watch-ultra2-and-watch9-your-health-companion-on-the-wristRead 23 October 2026Samsung's launch release gives the Galaxy Watch Ultra2 a battery 35% larger than the previous Ultra model.
Not available
Launch price (US)
$649.991Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026Galaxy Watch Ultra retails for $649.99 (LTE, 47 mm).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 10 October 2026MSRP $649.99 on all three rows.
Launch price (EU)
Markets
Not available
Colours
Titanium Gray, Titanium White, Titanium Silver1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026Text: 47mm in Titanium Gray, Titanium White and Titanium Silver. The 2025 edition adds Titanium Blue and 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 10 October 2026Row names give the colours.
Segment
Not available
OS updates promised
Not available
Not available
Security updates until
Not available
Not available
Case
6 of 8 differ
Case size
Case shape
Case material
Case material (as published)
Grade 4 titanium on the front and back cover areas, plastic and Grade 2 titanium for the rest of the frame1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026
Back
Not available
Case dimensions
Height47.4Width47.1Thickness12.1mm(1.9 × 1.9 × 0.5 in)1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026Table: 47.1 x 47.4 x 12.1 mm, footnote 50: measured without health sensors. Order is read as width x height x thickness. GSMArena prints 47.4 x 47.1 x 12.1 mm.
Height42.7Width40.4Thickness8.6mm(1.7 × 1.6 × 0.3 in)12Press releasenews.samsung.com/de/samsung-galaxy-watch-ultra2-und-die-galaxy-watch9-smarte-begleiter-am-handgelenkRead 30 September 2026Specification table dimension footnote: BioActive sensor protrusion excluded. Actual full thickness is greater.
Weight (case only)
Weight with strap
Not available
Not available
Durability
3 of 8 differ
Water resistance
Water resistance standard
Dust and water rating
Dive rating
Not available
Not available
Max dive depth
Not available
Not available
MIL-STD-810
MIL-STD-810 tests
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 10 October 2026Footnote 56 temperature cycle only.
Not available
Operating temperature
Min-20Max55°C1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026Footnote 39: withstands -20 C to 55 C while worn on the wrist, based on Samsung internal lab tests.2Maker product pagesamsung.com/us/watches/galaxy-watch-ultraRead 10 October 2026Operating temperature -4 F to 131 F, which matches -20 C to 55 C.
Not available
Display
2 of 14 differ
Display type
Display type (as published)
Screen size
Resolution
Pixel density
Not available
Not available
Display area
Not available
Not available
Touchscreen
Max refresh rate
Not available
Not available
Min refresh rate
Not available
Not available
Peak brightness
Minimum brightness
Not available
Not available
Always-on display
Display cover
Display cover (as published)
Platform
7 of 15 differ
Platform
OS at launch
Software
Not available
Latest OS
Not available
Not available
Works with
Phone requirement
Android 11 or later with more than 1.5 GB of memory. Excludes Android Go edition and phones without Google Play Store.1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026Footnote 54 and table: Android 11 or later, more than 1.5 GB memory, excluding Go edition and phones without Play Store.
Android 13.0 or higher and with more than 1.5GB of memory1Press releasenews.samsung.com/global/samsung-galaxy-watch-ultra2-and-watch9-your-health-companion-on-the-wristRead 30 September 2026
App store
Voice assistants
Bixby, Google Gemini2Maker product pagesamsung.com/us/watches/galaxy-watch-ultraRead 10 October 2026Compare table marks Google Gemini available. Bixby is in the launch manual.3Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 10 October 2026Bixby voice service on the watch.
Chipset
Process
CPU cores
CPU configuration
ASamsung Galaxy Watch Ultra
| Count | Core | Max clock (GHz) |
|---|---|---|
| 1 | Cortex-A78 | 1.6 |
| 4 | Cortex-A55 | 1.5 |
BSamsung Galaxy Watch9
| Count | Max clock (GHz) |
|---|---|
| 1 | 2.1 |
| 4 | 1.95 |
Max CPU clock
1.6GHz
2.1GHz
GPU
Not available
Not available
Low-power coprocessor
Not available
Not available
Memory
0 of 2 differ
RAM
Storage
Health sensors
2 of 8 differ
Heart rate sensor
ECG capability
Yes1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026Table lists an electrical heart signal sensor. The US page lists ECG for Galaxy Watch Ultra. ECG is only available in select markets.2Maker product pagesamsung.com/us/watches/galaxy-watch-ultraRead 10 October 2026
Blood oxygen sensing
Skin temperature sensing
Blood pressure feature
Not available
Body composition sensor
Skin conductance (EDA)
Not available
Not available
Medical clearances
FDA De Novo authorization for Sleep Apnea feature (US)1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026Press text for Watch7: De Novo FDA-authorized Sleep Apnea feature. Ultra builds on the Watch7 health features and its US page lists Sleep Apnea. ECG and IHRN clearance wording is not stated in this release.2Maker product pagesamsung.com/us/watches/galaxy-watch-ultraRead 10 October 2026Page lists Sleep Apnea for Galaxy Watch Ultra.
Motion and environment sensors
0 of 9 differ
Accelerometer
Accelerometer range
Not available
Not available
Gyroscope
Barometric altimeter
Compass
Ambient light sensor
Depth gauge
Not available
Not available
Depth gauge range
Not available
Not available
Water temperature sensor
Not available
Not available
Health and fitness
3 of 5 differ
Health features
Blood oxygen app, Sleep tracking, Stress tracking, Readiness score, Cycle tracking, Body composition, ECG app, Irregular rhythm notifications, Sleep apnea notifications2Maker product pagesamsung.com/us/watches/galaxy-watch-ultraRead 10 October 2026Health list: Energy Score, Sleep Apnea, Bedtime Guidance, High Stress Alert, Running Coach, Personalized Heart Rate Zone, Functional Threshold Power, AGEs Index, Vascular Load, ECG, Irregular Heart Rhythm Notification, Body Composition, Cycle Tracking. Blood pressure is not stored. Regional and phone requirements apply.3Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 10 October 2026Sleep and blood oxygen options in Samsung Health. Sleep tracking is listed.
Irregular rhythm notifications, ECG app, Heart rate variability, Sleep tracking, Sleep apnea notifications, Stress tracking, Readiness score, Cycle tracking, Body composition, Noise monitoring, Continuous heart rate, Heart rate alerts, Blood oxygen app, Sleep stages1Press releasenews.samsung.com/global/samsung-galaxy-watch-ultra2-and-watch9-your-health-companion-on-the-wristRead 30 September 2026Sleep Apnea, Vitals, Heart Health Score, Hearing (alerts for unsafe noise levels)2Maker product pagesamsung.com/us/watches/galaxy-watch9Read 30 September 2026Compare table: Energy Score, Sleep Apnea, High Stress Alert, Blood Pressure, ECG, Irregular Heart Rhythm Notification, Body Composition, Cycle Tracking, Hearing Protection, Vitals (HRV)8Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Samsung Health > Heart rate, printed pages 77-78: Measure continuously is an optional setting. High/Low HR alerts require a value outside the configured resting range for more than 10 minutes. Blood oxygen, pages 80-81: manual readings and optional continuous sensing while sleeping. Sleep, page 64: Awake, REM, Light and Deep stages, with detailed analysis through a paired phone. Existing ECG, blood-pressure and sleep-apnea functions retain their country and compatible-phone restrictions.
Fitness features
Pool swim, Open water swim, Trackback1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026Text: tracking for swimming in the ocean and a Multi-sports tile. Workout results include swim analysis with SWOLF score (US page). Track Back is on the US page.2Maker product pagesamsung.com/us/watches/galaxy-watch-ultraRead 10 October 2026Track Back with detailed guidance including altitude. Multisport. Workout results with swim analysis (SWOLF).
VO2 max, Training load, Recovery advice, Automatic workout detection1Press releasenews.samsung.com/global/samsung-galaxy-watch-ultra2-and-watch9-your-health-companion-on-the-wristRead 30 September 2026Daily Cardio Load with recovery guidance, Fitness Index uses BIA and VO2 Max8Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Samsung Health > Auto detect workouts feature, printed page 61: after continuously exercising for a period, the watch recognises supported exercise and records its type, duration and calories. Supported activity selection is configurable. This does not establish an exact sport-profile count.
Sport profiles
Not available
Not available
Dive modes
Not available
Not available
Safety
0 of 6 differ
Fall detection
Car crash detection
Not available
Not available
Emergency SOS
Emergency siren
Not available
Not available
Live location sharing
Not available
Not available
Dedicated LED flashlight
Not available
Not available
Positioning
1 of 3 differ
Positioning
Dual-band GNSS
Offline maps
Not available
Not available
Connectivity
4 of 15 differ
Bluetooth
Not available
Bluetooth version
Wi-Fi
Not available
Wi-Fi standard
Not available
Wi-Fi bands
Cellular
Network
4G bands
Not available
Not available
5G bands
Not available
Not available
NFC
Contactless payments
Payment services
Ultra-wideband
Not available
Not available
Satellite
Not available
Not available
ANT+
Not available
Not available
Audio
0 of 4 differ
Speaker
Microphones
Not available
Not available
Calls on the watch
Music on the watch
Controls
4 of 5 differ
Buttons
Named operating buttons
Crown
Rotating bezel
Not available
Gestures
Not available
Raise to talk, Double pinch, Double wrist rotation, Knock knock2Maker product pagesamsung.com/us/watches/galaxy-watch9Read 30 September 2026Raise to talk gesture starts Gemini8Owner's manualorg.downloadcenter.samsung.com/downloadfile/ContentsFile.aspxRead 8 October 2026Buttons and gestures, printed page 130: Double pinch answers calls or confirms alerts. Rotating the wrist twice can decline calls or dismiss alerts. Knock knock bends the wrist up and down twice to launch a configured feature. These controls must be enabled/configured and can vary with context. Raise to talk has separate manufacturer evidence.18Reviewnotebookcheck.net/Samsung-Galaxy-Watch-9-review-New-Galaxy-smartwatch-delivers-a-huge-performance-leap.1403883.0.htmlRead 8 October 2026Setup and Operation: double-tap gesture with thumb and index finger, tested for music control or ending a call. The manufacturer manual calls the same operating gesture Double pinch. The 44 mm test does not establish a 40 mm display or battery measurement.
Battery and charging
6 of 13 differ
Battery capacity
Claimed battery life
ASamsung Galaxy Watch Ultra
| Mode | With solar | Hours (h) |
|---|---|---|
| Always-on | No | 60 |
| Low power | No | 100 |
Source1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026Text: up to 100 hours in Power Saving mode. Footnote 45: up to 60 hours without Power Saving mode, typical usage. The US page states the 60 hours with always-on display on. Exercise Power Saving 48 hours is not stored.2Maker product pagesamsung.com/us/watches/galaxy-watch-ultraRead 10 October 2026Up to 60 hrs with AOD on and up to 100 hrs with Power Saving Mode on, 590 mAh. Current page of the 2025 edition with the same battery.
BSamsung Galaxy Watch9
| Mode | Hours (h) |
|---|---|
| Smartwatch | 40 |
| Always-on | 30 |
Smartwatch mode (claimed)
Not available
Not available
AOD battery life (up to)
60h
Not available
GPS mode (claimed)
Not available
Not available
Solar charging
Not available
Not available
Charging method
Charging guidance
Samsung lists Fast Charging (WPC-based wireless charging). Samsung tested with the Galaxy Watch Magnetic Fast Charging USB-C Cable (EP-OR900) and a 25 W USB-C adapter (EP-TA800) sold separately. Adapter ratings do not establish the power the watch accepts.1Press releasenews.samsung.com/us/samsung-galaxy-ring-watch7-watch-ultra-wearables-provide-intelligent-health-wellness-dataRead 10 October 2026Footnote 53 describes the charge test accessories and says the 25 W adapter is sold separately.
Not available
Max charging power (watch)
Not available
Fast charging
Quick charge claim
Not available
Not available
Charge 0 to 80% (claimed)
Not available
Not available
Measured
None of 4 known
Peak brightness (measured)
Not available
Not available
Battery life (measured)
Not available
Not available
Battery tests (measured)
Not available
Not available
Full charge time (measured)
Not available
Not available
Strap
3 of 6 differ
Lug width
Not available
Not available
Quick-release strap
Strap system
Dynamic Lug System for Galaxy Watch Ultra bands6Maker product pagesamsung.com/ae/support/mobile-devices/what-are-the-size-material-and-color-options-for-galaxy-watch7-and-galaxy-watch-ultraRead 10 October 2026Dynamic Lug System.
Strap material
Strap
Strap sizes
Not available
Not available
Regulatory
None of 3 known
FCC ID
Not available
Not available
SAR limb (US)
Not available
Not available
SAR limb (EU)
Not available
Not available
Other certifications
Not available
Not available
In the box
2 of 2 differ
In the box
Not available
Galaxy Watch9, Band, Wireless charging pad (10W)6Reviewgsmarena.com/samsung_galaxy_watch9-review-2988.phpRead 8 October 2026Only the watch, the band and a proprietary 10W wireless charging pad
Links
Not compared
Product page
Spec sheet
Not available
Manual
EPREL registration number
Not available
Not available
Warranty
None of 1 known
Manufacturer warranty (source market)
Not available
Not available
Both are also in the API. Back to all smartwatches.