arkivoAPI
Menu

Mobile / Smartwatches

Amazfit T-Rex Ultra 2

AmazfitOutdoor smartwatch

T-Rex Ultra 2

Released February 2026.6Press releasezepp.com/press-release/amazfit-announces-the-t-rex-ultra-2-a-titanium-gps-watch-engineered-for-the-extremeRead 15 October 2026Available for purchase from 19 February 2026 on Amazfit.com and Amazon. Last checked 16 October 2026.

Case size
51mm
Platform
Proprietary
Display type
OLED
Battery life
720h

91 of 150 fields known.

Compare with another smartwatchDownload JSONDownload CSVGet it from the API

At a glance

All specs

SourceCalculated

General

Series
T-Rex1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Amazfit T-Rex family. The page compares it with the T-Rex 3, T-Rex 3 Pro and T-Rex Dual Solar.
Model numbers
W2550GL2N2Maker product pageus.amazfit.com/products/t-rex-ultra-2.jsonRead 15 October 2026Store feed variant SKU W2550GL2N for the single option.
GTIN / EAN
850071618860, 69725961097302Maker product pageus.amazfit.com/products/t-rex-ultra-2.jsonRead 15 October 2026US store feed barcode 850071618860. The German store feed carries 6972596109730 under its own SKU TREXU2-C1207005003.
Announced
19 February 20266Press releasezepp.com/press-release/amazfit-announces-the-t-rex-ultra-2-a-titanium-gps-watch-engineered-for-the-extremeRead 15 October 2026Press release dated 19 February 2026.
Status
Available1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026The store lists the single option at 549.99 USD and the add to cart button is active.
Predecessor
Not available
Successor
Not available
Launch price (US)
$549.996Press releasezepp.com/press-release/amazfit-announces-the-t-rex-ultra-2-a-titanium-gps-watch-engineered-for-the-extremeRead 15 October 2026549.99 USD in the US. Prices exclude sales tax.
Launch price (EU)
€549.94Maker product pagede.amazfit.com/products/t-rex-ultra-2.jsonRead 15 October 2026The German store lists 549.90 EUR including VAT. It matches the nextpit list price. The German price is stored as the euro launch price.7Spec databasenextpit.de/smartwatches/amazfit-t-rex-ultra-2Read 15 October 2026UVP 549.90 EUR including VAT.
Markets
Not available
Colours
Black Magma1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Spec table: Black Magma. The store sells one colour and one size.
Segment
Outdoor1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Amazfit sells it as a rugged outdoor GPS smartwatch in its T-Rex range.
OS updates promised
Not available
Security updates until
Not available

Case

Front and side, drawn to scale.

Case size
51mm1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026One case size, 51 mm. Compare table: case diameter 51 mm.
Case shape
Round1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026The display is round and the product images show an octagonal bezel around a round dial. Stored as round, like the T-Rex 3 Pro.
Case material
Mixed materials1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Body Material: case in fiber-reinforced polymer. Bezel, buttons and back panel in Grade 5 titanium. Stored as mixed. The marketing text says 51 mm Grade 5 titanium body, which the spec table does not support for the whole case.
Case material (as published)
Case in fiber-reinforced polymer. Bezel, buttons and back panel in Grade 5 titanium1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Technical specifications, Body Material row.
Back
Grade 5 titanium1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Technical specifications: back panel in Grade 5 titanium. The press release says titanium bezel and case back.
Case dimensions
Height51Width51Thickness14.3mm(2 × 2 × 0.6 in)1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Dimensions without heart rate base: 51 x 51 x 14.3 mm. The UK comparison table gives the same figure. The US comparison table lists a thickness of 15.1 mm without the heart rate sensor, which conflicts with the 14.3 mm in the spec table. The spec table value is stored.
Weight (case only)
Not available
Weight with strap
89.2g(3.1 oz)1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Weight (with strap): 89.2 g. The standard silicone strap with a pin buckle. The maker does not publish a case-only weight.

Durability

Water resistance
10ATM1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Water-resistance grade 10 ATM. Note 8 says it is rated to ISO 22810:2010 for up to 100 m and passed SGS testing.
Water resistance standard
ISO 22810:20101Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Note 8: according to ISO 22810:2010 the watch achieves 10 ATM.
Dust and water rating
Not available
Dive rating
EN13319:2000, ISO 6425:2018, GB/T 18828-20221Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Note 9 names EN13319:2000, ISO 6425:2018 and GB/T 18828-2022 with report numbers. It also says the watch uses the Buhlmann ZHL-16C decompression model.
Max dive depth
45m1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026FAQ: certified for diving and supports depths up to 45 m for freediving and recreational scuba diving.
MIL-STD-810
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Note 1: MIL-STD-810H-2019 data comes from report H202512228939-01EN. The tested methods are not listed.
MIL-STD-810 tests
Not available
Operating temperature
Min-30°C1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Low Temperature Mode keeps essential functions responsive down to -30 C. It is off by default and switches on when the watch surface is below -10 C (note 10). No upper limit is published.

Display

Display type
OLED1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026
Display type (as published)
AMOLED1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Display Material: AMOLED.
Screen size
1.5in(3.8 cm)1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Size: 1.5 inch.
Resolution
480 × 480px1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Resolution 480 x 480.
Pixel density
322ppi1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026PPI 322 as published.
Display area
Not available
Touchscreen
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026The spec table row labelled Touchscreen names sapphire glass. The manual describes tap and swipe gestures, so touch is confirmed there.5Owner's manualsupport.amazfit.com/en/amazfit_t-rex_ultra_2/files/user-manual.pdf.pdfRead 15 October 2026Commonly used gestures and buttons: tap and swipe on the screen.
Max refresh rate
Not available
Min refresh rate
Not available
Peak brightness
3,000nits1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Peak brightness up to 3,000 nits. Note 17: not supported in low temperature mode or when battery is below 30%, and needs automatic brightness.
Minimum brightness
Not available
Always-on display
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Battery table lists an AOD mode figure. The manual describes Settings > Display > Always On Display.
Display cover
Sapphire1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026
Display cover (as published)
Sapphire glass1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Screen material: sapphire glass. The Touchscreen row of the spec table also says sapphire glass.

Platform

Platform
Proprietary1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Zepp OS, Zepp Health's own operating system.
OS at launch
Zepp OS 53Maker product pageuk.amazfit.com/products/t-rex-ultra-2Read 15 October 2026The UK comparison table lists OS Zepp OS 5 for the T-Rex Ultra 2.
Software
Not available
Latest OS
Zepp OS 69Press articlegadgetsandwearables.com/2026/07/22/amazfit-t-rex-3-pro-ultra-2-zepp-os-6-updateRead 15 October 2026Article of 22 July 2026: Zepp OS 6 starts rolling out to the T-Rex 3, T-Rex 3 Pro and Ultra 2.
Works with
iOS, Android1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Supported devices: Android 7.0 and above, iOS 15.0 and above. Application: Zepp App.
Phone requirement
Android 7.0 and above, iOS 15.0 and above, with the Zepp App1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Supported Devices and Application rows.
App store
Yes5Owner's manualsupport.amazfit.com/en/amazfit_t-rex_ultra_2/files/user-manual.pdf.pdfRead 15 October 2026App installation: more apps install from the app store in the Zepp App.
Voice assistants
Zepp Flow1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026AI assistant: Zepp Flow, in select countries and regions. Note 11 lists the supported languages.
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

RAM
Not available
Storage
64GB1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Storage (note 18): Total 64 GB. Available 26.7 GB for maps, music, mini programs, records and watch faces because the system uses the rest. The total is stored.

Health sensors

Heart rate sensor
BioTracker 6.0 PPG biometric sensor (5PD + 2LED)1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Sensors, Health: BioTracker 6.0 PPG biometric sensor (5PD + 2LED).
ECG capability
Not available
Blood oxygen sensing
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 202624H monitoring and manual blood-oxygen saturation. Not a medical device (note 13).
Skin temperature sensing
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 202624H monitoring lists skin temperature (thermometer).
Blood pressure feature
Not available
Body composition sensor
Not available
Skin conductance (EDA)
Not available
Medical clearances
Not available

Motion and environment sensors

Accelerometer
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026
Accelerometer range
Not available
Gyroscope
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026
Barometric altimeter
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026
Compass
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Outdoor tools list Compass and the movement sensors include a geomagnetic sensor.
Ambient light sensor
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Sensors, Movement: ambient light sensor.
Depth gauge
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Dive tracking shows time and depth. The manual states the maximum measurement depth.
Depth gauge range
45m1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Manual: maximum measurement depth 45 m. The page says dives up to 45 m.5Owner's manualsupport.amazfit.com/en/amazfit_t-rex_ultra_2/files/user-manual.pdf.pdfRead 15 October 2026Diving Technical Specifications: maximum measurement depth 45 m / 147.6 ft, accuracy per EN13319.
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 score1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 202624H heart rate, blood oxygen and stress, abnormal high and low heart rate alerts, sleep heart rate variability, sleep stages including REM, and HybridCharge energy intelligence with BioCharge. The software notes mention a Readiness app. Not a medical device.
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, Trackback, Golf courses, Ski resort maps1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Smart recognition of 8 sports movements, VO2 Max (note 12), Training Load, recovery, pool and open-water swim, strength training with recognition of 25 movements, interval training via the watch, offline maps, turn-by-turn directions, direct return navigation, 40,000+ golf course maps and ski resort maps. Ground contact time and vertical amplitude are named in the marketing copy but not stored because the page does not say whether they need an external sensor.5Owner's manualsupport.amazfit.com/en/amazfit_t-rex_ultra_2/files/user-manual.pdf.pdfRead 15 October 2026Return to the starting point: straight line return or Backtrack along the route already travelled, which is the trackback option.
Sport profiles
1871Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Sports Features row: 187 sports modes. Marketing copy says 180+.
Dive modes
Scuba, single gas, Freedive1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Pro-grade waterproofing: recreational scuba diving and freediving with automatic dive detection. Note 9: Buhlmann ZHL-16C decompression model. The manual says no mixed-gas diving.
External sensors
Heart rate strap, Power meter, Speed and cadence, Foot pod, Smart trainer1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Peripherals: heart rate belt, running power meter, Stryd foot pod, cycling power meter, cycling speed and cadence sensors. The September 2026 software notes add FTMS indoor bike trainers and rowing machines. Note 15: only BLE devices are supported.

Safety

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
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Flashlight with 4 white levels, 1 green mode and Boost Mode.

Positioning

Positioning
GPS, GLONASS, Galileo, BeiDou, QZSS, NavIC8Reviewcomputerwoche.de/article/4171180/amazfit-t-rex-ultra-2-im-test-grose-starke-und-robuste-outdoor-smartwatch.htmlRead 15 October 2026The test names the six systems as GPS, GLONASS, Galileo, BeiDou, QZSS and NavIC with dual-band GNSS. The maker states six systems and does not name them. Signal bands are not stored.
Dual-band GNSS
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Positioning: dual-band positioning and 6 satellite positioning systems with a circularly-polarized GPS antenna.
Offline maps
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Navigation and maps: offline maps supported. Full-colour base maps are preloaded.

Connectivity

Bluetooth
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Connection: Wi-Fi 2.4 GHz, Bluetooth 5.2, BLE.
Bluetooth version
5.21Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Connection row: Bluetooth 5.2, BLE.
Wi-Fi
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Connection: Wi-Fi 2.4 GHz. OTA update via Wi-Fi is supported.
Wi-Fi standard
Not available
Wi-Fi bands
2.4 GHz1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Connection row lists 2.4 GHz only.
Cellular
No1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Connection lists Wi-Fi 2.4 GHz, Bluetooth 5.2 and BLE only. No cellular radio is listed.
Network
Not available
4G bands
Not available
5G bands
Not available
NFC
Yes3Maker product pageuk.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Zepp Pay text: integration of NFC technology. The usage scenarios also count NFC card swipes.8Reviewcomputerwoche.de/article/4171180/amazfit-t-rex-ultra-2-im-test-grose-starke-und-robuste-outdoor-smartwatch.htmlRead 15 October 2026The spec table lists NFC (Zepp Pay). In Germany payment works only through the third party Curve.
Contactless payments
Yes3Maker product pageuk.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Zepp Pay binds up to eight bank cards for password-protected contactless payment. Note 16: supported by Curve and participating issuer banks in 31 European countries. The US page does not mention Zepp Pay.
Payment services
Zepp Pay3Maker product pageuk.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Zepp Pay, via Curve and participating issuer banks in 31 European countries.
Ultra-wideband
Not available
Satellite
Not available
ANT+
No1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Note 15: peripheral connections only support BLE devices. ANT+ is not listed.

Audio

Speaker
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Mic and Speaker: Support.
Microphones
Not available
Calls on the watch
Phone only1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026FAQ: the watch supports Bluetooth phone calls and texts. Calls use the paired phone.
Music on the watch
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Music Storage: Support. The manual says local mp3 files play through the speaker.

Controls

Buttons
41Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Buttons: 4.
Named operating buttons
UP, SELECT, BACK, DOWN5Owner's manualsupport.amazfit.com/en/amazfit_t-rex_ultra_2/files/user-manual.pdf.pdfRead 15 October 2026UP, DOWN, upper right SELECT and lower right BACK. Press and hold UP turns the flashlight on.
Crown
None5Owner's manualsupport.amazfit.com/en/amazfit_t-rex_ultra_2/files/user-manual.pdf.pdfRead 15 October 2026No crown is described. Controls are four buttons and the touchscreen.
Rotating bezel
None5Owner's manualsupport.amazfit.com/en/amazfit_t-rex_ultra_2/files/user-manual.pdf.pdfRead 15 October 2026No rotating bezel is described.
Gestures
Not available

Battery and charging

Battery capacity
870mAh1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Battery Capacity: 870 mAh (rated value).
Claimed battery life
ModeWith solarHours (h)
SmartwatchNo720
Heavy useNo360
Always-onNo240
GPS, dual-bandNo50
GPS, power savingNo90
Max battery GPSNo177
Source1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Typical use up to 30 days (720 h, note 7 scenario). Heavy use up to 15 days. AOD mode up to 10 days, tested with the heavy-use workload and AOD on. Accurate GPS up to 50 h with heart rate on and dual-frequency, all satellites. Power-saving GPS up to 90 h, single frequency. GPS Max Battery Life 177 h, only in Hiking and Climbing modes with heart rate, Bluetooth and wrist raise off. Not stored: trail running normal 44 h and heavy 30 h, low temperature mode 40 h with GPS and 32 days without, since the schema has no mode for them.
Smartwatch mode (claimed)
720h
AOD battery life (up to)
240h
GPS mode (claimed)
Not available
Solar charging
No1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Compare table: solar charging not supported.
Charging method
Not available
Charging guidance
Magnetic charging head. The box has a charging base that works with USB Type-C but no cable. The store FAQ says a USB-C cable is not supplied.1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Packing list: magnetic charging head (no cable). What's in the Box: charging base (USB Type-C compatible) but no cable. FAQ: no USB-C cable included.
Max charging power (watch)
Not available
Fast charging
Not available
Quick charge claim
Not available
Charge 0 to 80% (claimed)
Not available
Full charge time (claimed)
Not available

Measured

We could not find any of these 4 fields. Show them
Peak brightness (measured)
Not available
Battery life (measured)
Not available
Battery tests (measured)
Not available
Full charge time (measured)
Not available

Strap

Lug width
26mm1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Strap width 26 mm.
Quick-release strap
Yes1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Compare table: strap attachment 26 mm quick release.
Strap system
26 mm quick release1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Compare table: strap attachment 26 mm quick release.
Strap material
Silicone1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Strap materials: silicone. Buckle: classic pin buckle.
Strap
Not available
Strap sizes
Wrist (min) (mm)Wrist (max) (mm)
145215
Source1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Min. and max. wrist dimensions: 145-215 mm.

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 (including standard strap), Magnetic charging head (no cable), Instruction manual1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Packing list verbatim.
Power adapter in box
No1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026The packing list has a charging head and no USB cable or power adapter.

Warranty

Manufacturer warranty (source market)
1year1Maker product pageus.amazfit.com/products/t-rex-ultra-2Read 15 October 2026Store footer says 1 Year Warranty. This is the US store.

Compare with

Pick a smartwatch to see both side by side. Differences are marked yellow.

More smartwatch comparisons

Sources

We read 9 sources for this smartwatch. The numbers match the markers in the sheet.

  1. Read 15 October 2026Backs 73 fields
  2. Read 15 October 2026Backs 2 fields
  3. Read 15 October 2026Backs 4 fields
  4. Read 15 October 2026Backs 1 field
  5. Read 15 October 2026Backs 8 fields
  6. Read 15 October 2026Backs 3 fields
  7. Read 15 October 2026Backs 1 field
  8. Read 15 October 2026Backs 2 fields
  9. Read 15 October 2026Backs 1 field

See a wrong value? Tell us and name the field.