Battery life
- AmazFit T-Rex Ultra
- 500 mAh battery
- WHOOP Peak 5.0 Sensor
- Up to 14+ days
Wearable comparison
AmazFit T-Rex Ultra vs WHOOP Peak 5.0
Compare battery life, health tracking, display and fit.
01Selected  AmazFit T-Rex Ultra
KSh 47,000Out of Stock | 02  WHOOP Peak 5.0 Sensor
KSh 38,000In Stock |
|---|
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2 of 4 products
Our quick verdict
The AmazFit T-Rex Ultra, a smartwatch with a 1.39-inch OLED screen, lasts longer between charges (up to 20 days) and is swimproof to 100 m, while the WHOOP Peak 5.0 Sensor, a screenless tracker you read in the WHOOP app, gives daily recovery and strain scores and is lighter to wear all day, though it needs a WHOOP membership.
Portability
- AmazFit T-Rex Ultra
- 89 g
- WHOOP Peak 5.0 Sensor
- About 26.5 g
Display
- AmazFit T-Rex Ultra
- 1.39-inch OLED display, 326 ppi
- WHOOP Peak 5.0 Sensor
- Screenless tracker
Software
- AmazFit T-Rex Ultra
- Zepp OS 3.5
- WHOOP Peak 5.0 Sensor
- WHOOP with Peak membership
Connections
- AmazFit T-Rex Ultra
- Bluetooth 5.0
- WHOOP Peak 5.0 Sensor
- Bluetooth
Key differences
The main differences to help you choose.
AmazFit T-Rex Ultra
- Longer rated battery life: up to 20 days (vs more than 14 days).
- Screen on the wrist for the time, notifications and workout stats.
- Swimproof: water resistant to 100 m (vs 10 m).
- Charging: Magnetic charging base.
WHOOP Peak 5.0 Sensor
- Lighter: about 26.5 g (vs 89 g).
- Screenless: worn day and night, with results read in the WHOOP app.
- Daily recovery and strain scores.
- Slimmer: 10.6 mm thick (vs 13.45 mm).
- Charging: Wireless PowerPack.
What matters most to you?
6 priorities selected.
| Priority | AmazFit T-Rex Ultra | WHOOP Peak 5.0 Sensor |
|---|---|---|
| Battery life | 500 mAh battery | Up to 14+ days |
| Portability | 89 g | About 26.5 g |
| Display | 1.39-inch OLED display, 326 ppi | Screenless tracker |
| Software | Zepp OS 3.5 | WHOOP with Peak membership |
| Connections | Bluetooth 5.0 | Bluetooth |
| Water resistance | 10 ATM | IP68 water and dust resistance |
| Sensors | BioTracker PPG biometric sensor with SpO₂ | PPG heart-rate sensor, accelerometer |
| Sleep tracking | Sleep stages including REM, naps | Light, REM and deep sleep |
| Charging | Magnetic charging base, approximately 2 hours | Wireless PowerPack, compatible with USB-C Basic Charger |
| Positioning / GNSS | Built-in dual-band L1/L5 positioning, six satellite systems | Connected smartphone GPS, no built-in GPS |
| Health & wellness features | 24-hour heart-rate, blood-oxygen and stress monitoring | Continuous heart rate, HRV |
| Strap / band | 22 mm silicone strap with classic pin buckle | SuperKnit Obsidian |
Tick a topic above to see how each product answers it.
Detailed comparison
Explore the full specifications, section by section.
These products have the same published specifications.
Similarities
- Both have a stainless steel case.
In summary
Get the AmazFit T-Rex Ultra if you want longer battery life and the time, notifications and workout stats on your wrist, or the WHOOP Peak 5.0 Sensor if you would rather have a screenless tracker with daily recovery and strain scores.
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