Mobile / Smartwatches

AmazfitSmartwatch
Active 2 (Round)
Released January 2025.5Press articlegadgetsandwearables.com/2025/01/24/amazfit-active-2-amazonRead 5 October 2026Dated January 24, 2025. Opening explicitly says Standard is now available on Amazon US and was previously available on the Zepp website. Premium is still expected later. January is actual Standard retail, not the January 6 preorder date. Last checked 5 October 2026.
- Case size
- 44mm
- Platform
- Proprietary
- Display type
- OLED
- Battery life
- 240h
70 of 150 fields known.
At a glance
Pixel density
353ppi1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
Higher than 94% of other smartwatches.
Weight (case only)
Lower than 81% of other smartwatches. Lower is better.
General
- Model numbers
- A2433, A2437, W2437GL3N, W2437GL1N, ACTIVE2RBK-C0208005007, ACTIVE2RLE-C02080350012Owner's manualsupport.amazfit.com/en/amazfit_active_2%28round%29/imgs/electronic_manual.pdfRead 5 October 2026Printed page 6 identifies NFC model A2433 and non-NFC A2437. Exact retail SKU mappings come from current regional product pages. Shared NFC/payment flags are omitted because they are not variant-enabled and cannot safely describe both editions.7Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 20268Maker product pagede.amazfit.com/products/amazfit-active-2Read 5 October 2026
- GTIN / EAN
- Not available
- Status
- Not available
- Predecessor
- Not available
- Successor
- Not available
- Launch price (EU)
- Not available
- Markets
- US, DE7Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 20268Maker product pagede.amazfit.com/products/amazfit-active-2Read 5 October 2026
- Colours
- Red Sport Silicone, Black Sport Silicone, Black Leather – Premium1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Three marketed combinations are stated in the technical table. Exact current US and German retail SKUs prove the represented sold configurations.
- Segment
- Smartwatch1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 20264Press releaseus.amazfit.com/blogs/news/amazfit-announces-the-active-2-the-ultimate-everyday-smartwatch-for-active-and-healthy-livingRead 5 October 2026
- OS updates promised
- Not available
- Security updates until
- Not available
Case
Front and side, drawn to scale.
- Case material (as published)
- Stainless steel bezel and polymer middle frame1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Back
- Not available
- Case dimensions
- Height43.9Width43.9Thickness9.9mm(1.7 × 1.7 × 0.4 in)1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Technical Specifications / Design explicitly excludes the heart-rate sensor base from the 9.9 mm thickness.
- Weight (case only)
- 29.5g(1 oz)1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Technical table explicitly excludes the strap. Standard 29.5 g and Premium 31.65 g are repeated in their exact variant rows.
- Weight with strap
- Not available
Durability
- Water resistance standard
- ISO 22810:20101Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Dust and water rating
- Not available
- Dive rating
- Not available
- Max dive depth
- Not available
- MIL-STD-810
- Not available
- MIL-STD-810 tests
- Not available
Display
- Display type (as published)
- AMOLED1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Screen size
- 1.32in(3.4 cm)1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Resolution
- 466 × 466px1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Pixel density
- 353ppi1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Display area
- Not available
- Max refresh rate
- Not available
- Min refresh rate
- Not available
- Minimum brightness
- Not available
- Display cover
- Other glass1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Display cover (as published)
- Tempered glass with anti-fingerprint coating1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Standard tempered glass and Premium sapphire are explicitly distinguished in the technical table and exact supplied-strap variants.
Platform
- OS at launch
- Not available
- Software
- Not available
- Works with
- iOS, Android1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Phone requirement
- Android 7.0 or iOS 14.0 and later.1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- App store
- Yes1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Maker app section and full manual printed page 36 explicitly support installed Mini Apps from the Zepp app store.3Owner's manualsupport.amazfit.com/us/amazfit_active_2(round)/files/user-manual.pdf.pdfRead 5 October 2026Printed page 36 Mini App installation and uninstallation uses the Zepp device app store.
- Chipset
- Not available
- Process
- Not available
- CPU cores
- Not available
- CPU configuration
- Not available
- Max CPU clock
- Not available
- GPU
- Not available
- Low-power coprocessor
- Not available
Memory
We could not find any of these 2 fields. Show them
- RAM
- Not available
- Storage
- Not available
Health sensors
- Heart rate sensor
- BioTracker 6.0 PPG, two LEDs and five photodiodes1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 20264Press releaseus.amazfit.com/blogs/news/amazfit-announces-the-active-2-the-ultimate-everyday-smartwatch-for-active-and-healthy-livingRead 5 October 2026Cutting-Edge Technology explicitly states two LEDs and five photodiodes for BioTracker 6.0.
- ECG capability
- Not available
- Blood oxygen sensing
- Yes1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Skin temperature sensing
- Yes1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Technical Health Features explicitly lists 24-hour Skin temperature. This is not inferred from a generic temperature sensor.
- Blood pressure feature
- Not available
- Body composition sensor
- Not available
- Skin conductance (EDA)
- Not available
- Medical clearances
- Not available
Motion and environment sensors
- Accelerometer range
- Not available
- Barometric altimeter
- Yes1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Ambient light sensor
- Yes1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Depth gauge
- Not available
- Depth gauge range
- Not available
- Water temperature sensor
- Not available
Health and fitness
- Health features
- Continuous heart rate, Heart rate alerts, Blood oxygen app, Heart rate variability, Sleep tracking, Sleep stages, Stress tracking, Readiness score, Cycle tracking1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Technical health table explicitly supports all retained functions. HRV is sleep HRV. Readiness is a daily wellness score. Note 3 requires enabling periodic HR/SpO2/stress and setting alert thresholds, with movement and fit restrictions. These are wellness functions. Sleep-breathing quality is not clinical sleep-apnea notification.3Owner's manualsupport.amazfit.com/us/amazfit_active_2(round)/files/user-manual.pdf.pdfRead 5 October 2026Printed pages 25-28 explain daily readiness from HR, stress, sleep, HRV and temperature, and explicit sleep stages including REM. No clinical apnea claim is inferred.
- Fitness features
- Automatic workout detection, VO2 max, Training load, Recovery advice, Pool swim, Open water swim, Strength rep counting, Interval workouts, Route navigation, Turn-by-turn navigation, Trackback3Owner's manualsupport.amazfit.com/us/amazfit_active_2(round)/files/user-manual.pdf.pdfRead 5 October 2026Printed pages 12-15 define interval/rest/repeat training, route import, turn prompts and return along the recorded track. Pages 17/18 explicitly define pool/open-water SWOLF and stroke recognition. Page 19 automatically records eight recognized workouts. Pages 20-23 specify VO2 max, EPOC load and recovery. VO2 max requires qualifying running with HR at least 75 percent of maximum. The maker launch explicitly proves automatic strength rep/set counts.4Press releaseus.amazfit.com/blogs/news/amazfit-announces-the-active-2-the-ultimate-everyday-smartwatch-for-active-and-healthy-livingRead 5 October 2026Fitness section explicitly counts reps, sets and rest time during recognized strength exercises.
- Dive modes
- Not available
- External sensors
- Heart rate strap, Power meter, Speed and cadence1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Technical table and note 18 explicitly support BLE heart-rate belts, running/cycling power meters, cycling speed and cadence sensors. External power-meter compatibility is not built-in running-power proof.
Safety
We could not find any of these 6 fields. Show them
- Fall detection
- Not available
- Car crash detection
- Not available
- Emergency SOS
- Not available
- Emergency siren
- Not available
- Live location sharing
- Not available
- Dedicated LED flashlight
- Not available
Positioning
Connectivity
- Bluetooth
- Not available
- Bluetooth version
- 5.21Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Wi-Fi
- Not available
- Wi-Fi standard
- Not available
- Wi-Fi bands
- Not available
- Cellular
- Not available
- Network
- Not available
- 4G bands
- Not available
- 5G bands
- Not available
- NFC
- Not available
- Contactless payments
- Not available
- Payment services
- Not available
- Ultra-wideband
- Not available
- Satellite
- Not available
- ANT+
- Not available
Audio
- Microphones
- Not available
- Calls on the watch
- Phone only1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
Controls
- Named operating buttons
- Upper button, Lower button2Owner's manualsupport.amazfit.com/en/amazfit_active_2%28round%29/imgs/electronic_manual.pdfRead 5 October 2026Printed page 2 complete About the Watch diagram names Upper and Lower buttons. Neither is described as a rotating crown.
- Rotating bezel
- Not available
- Gestures
- Not available
Battery and charging
- Battery capacity
- 270mAh1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Technical table explicitly states 270 mAh rated capacity. No typical capacity is substituted.
- Claimed battery life
Mode With solar Hours (h) Smartwatch No 240 Low power No 456 Heavy use No 120 GPS No 21 - Smartwatch mode (claimed)
- 240h
- AOD battery life (up to)
- Not available
- GPS mode (claimed)
- 21h
- Solar charging
- Not available
- Charging method
- Magnetic pins1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Quick guide printed page 4 explicitly describes metal charging contacts mating with the magnetic base. The USB-C socket is on the base, not the watch.2Owner's manualsupport.amazfit.com/en/amazfit_active_2%28round%29/imgs/electronic_manual.pdfRead 5 October 2026Printed page 4 explicitly identifies metal charging contacts fitting closely to the charging base.
- Charging guidance
- Not available
- Max charging power (watch)
- Not available
- Fast charging
- Not available
- Quick charge claim
- Not available
- Charge 0 to 80% (claimed)
- Not available
Measured
- Peak brightness (measured)
- Not available
- Battery life (measured)
- Not available
- Battery tests (measured)
- Not available
Strap
- Quick-release strap
- Yes1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Strap system
- Not available
- Strap material
- Silicone1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Strap
- Not available
- Strap sizes
Wrist (min) (mm) Wrist (max) (mm) 135 195
Regulatory
We could not find any of these 4 fields. Show them
- FCC ID
- Not available
- SAR limb (US)
- Not available
- SAR limb (EU)
- Not available
- Other certifications
- Not available
In the box
- In the box
- Smartwatch with supplied strap, Magnetic charging base, Instruction manual1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026Technical packing list includes watch with standard strap, charging base and instruction manual. USB-C cable and power adapter are absent. The original launch additionally supplies a red silicone strap with the US Premium package, recorded only in that variant row.4Press releaseus.amazfit.com/blogs/news/amazfit-announces-the-active-2-the-ultimate-everyday-smartwatch-for-active-and-healthy-livingRead 5 October 2026Launch design paragraph explicitly includes an additional red silicone strap in the Premium package. Retained only for the represented US Premium configuration.
- Power adapter in box
- No1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
Links
- Product page
- us.amazfit.com/products/active-2-round1Maker product pageus.amazfit.com/products/active-2-roundRead 5 October 2026
- Spec sheet
- Not available
- Manual
- support.amazfit.com/us/amazfit_active_2(round)/files/user-manual.pdf.pdf3Owner's manualsupport.amazfit.com/us/amazfit_active_2(round)/files/user-manual.pdf.pdfRead 5 October 2026Original complete Active 2 (Round) user guide, 38 pages. It is not the Square manual. A map-download instruction incorrectly refers to Wi-Fi although exact quick parameters and maker connectivity table do not publish Wi-Fi. Wi-Fi standards/bands are omitted rather than inherited from this instruction.
- EPREL registration number
- Not available
Warranty
- Manufacturer warranty (source market)
- 1year2Owner's manualsupport.amazfit.com/en/amazfit_active_2%28round%29/imgs/electronic_manual.pdfRead 5 October 2026Printed page 11 limited manufacturer warranty explicitly covers one year from original purchase, with additional statutory consumer rights unaffected.
Compare with
Pick a smartwatch to see both side by side. Differences are marked yellow.
Variants
Each variant lists only what differs from the specs above.
| Model number | Launch price (US) | Markets | Colours | Case size | Case dimensions | Weight (case only) | Display cover | Display cover (as published) | Battery capacity | Full charge time (claimed) | Lug width | Strap material | Strap sizes | In the box | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| W2437GL3N | $99.99 | US | Red Sport Silicone | 44 mm | Height 43.9, Width 43.9, Thickness 9.9 mm | 29.5 g | Other glass | Tempered glass with anti-fingerprint coating | 270 mAh | 120 min | 20 mm | Silicone | Show 1 rows
| Smartwatch with supplied strap, Magnetic charging base, Instruction manual | ||||
| W2437GL1N | $129.99 | US | Black Leather – Premium | 44 mm | Height 43.9, Width 43.9, Thickness 9.9 mm | 31.65 g | Sapphire | Sapphire glass | 270 mAh | 120 min | 20 mm | Leather | Show 1 rows
| Smartwatch with supplied strap, Magnetic charging base, Instruction manual, Additional red silicone strap | ||||
| ACTIVE2RBK-C0208005007 | Not available | DE | Black Sport Silicone | 44 mm | Height 43.9, Width 43.9, Thickness 9.9 mm | 29.5 g | Other glass | Tempered glass with anti-fingerprint coating | 270 mAh | 120 min | 20 mm | Silicone | Show 1 rows
| Not available | ||||
| ACTIVE2RLE-C0208035001 | Not available | DE | Black Leather – Premium | 44 mm | Height 43.9, Width 43.9, Thickness 9.9 mm | 31.65 g | Sapphire | Sapphire glass | 270 mAh | 120 min | 20 mm | Leather | Show 1 rows
| Not available |
Sources
We read 10 sources for this smartwatch. The numbers match the markers in the sheet.
- Maker product pageus.amazfit.com/products/active-2-round
- Maker product pagedocs.zepp.com/docs/reference/related-resources/device-list
- Maker product pageus.amazfit.com/products/active-2-round
- Maker product pagede.amazfit.com/products/amazfit-active-2
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