Amazfit Pop 2 vs Amazfit T-Rex ProSize, Specs & Wrist Fit Compared
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Amazfit
Pop 2
Amazfit
T-Rex Pro
Which one fits you
On wrists narrower than about 52mm, the Amazfit T-Rex Pro is the safer pick — it stays proportionate down to roughly 50mm, where the Amazfit Pop 2 starts to hang over the edge. Above 52mm both sit cleanly, and the Amazfit Pop 2 gives you more presence.
The Amazfit T-Rex Pro wears larger than the Amazfit Pop 2 (47.7mm vs 47.2mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Amazfit Pop 2 is the slimmer of the two (12.9mm vs 13.5mm), so it slides under a cuff more easily.
On the wrist the Amazfit T-Rex Pro feels lighter (59.4g vs 64g, case only).
Among the 87 47mm watches we hold thickness for, the Amazfit Pop 2 is thinner than 71%, so it wears flatter than its width suggests.
Among the 52 48mm watches we hold thickness for, the Amazfit T-Rex Pro is thinner than 69%, so it wears flatter than its width suggests.
Specification Comparison
| Spec | AmazfitPop 2 | AmazfitT-Rex Pro |
|---|---|---|
| Case Width | 47.2mm | 47.7mm |
| Lug-to-Lug | 49.4mm | 47.7mm |
| Thickness | 12.9mm | 13.5mm |
| Weight | 64g | 59.4g |
| Shape | Circular | Circular |
| Water Resistance | Water resistant | 10 ATM |
| GPS | No | 40 hours |
| Display | 1.78 inches | 1.3 inches |
| Always-On Display | Yes | Yes |
| Battery life | 10 days | 18 days |
| Has wireless charging | No | Yes |
| Has a removable battery | No | No |
| Has a solar power battery | No | No |
| Has a rechargeable battery | Yes | Yes |
| Has a battery level indicator | Yes | Yes |
| Charge time | — | 1.5 hours |
| Battery power | — | 390 mAh |
| Battery life with GPS on | — | 40 hours |
| Released | 2022 | 2021 |
Battery life compared
The two are closest in everyday use and furthest apart in Smartwatch mode, where one lasts 1.8× as long as the other (18 days against 10 days).
Amazfit Pop 2Amazfit T-Rex Pro
Smartwatch
10 days18 daysGPS
—40 hours
Full Specification Comparison
115 specs| Spec | Amazfit Pop 2 | Amazfit T-Rex Pro |
|---|---|---|
| Design | ||
| width | 47.2 | 47.7 |
| height | 49.4 | 47.7 |
| volume | 30.08 cm³ | 30.72 cm³ |
| weight | 64 g | 59.4 g |
| thickness | 12.9 | 13.5 |
| resolution | 368 x 448 px | 360 x 360 px |
| screen size | 1.78 inches | 1.3 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 326 ppi | 391.6 ppi |
| width of band | 22 mm | 22 mm |
| water resistance | Water resistant | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | No |
| has branded damage-resistant glass | No | No |
| ATM rating | — | 10 ATM |
| Gorilla Glass version | — | Gorilla Glass 3 |
| waterproof depth rating | — | 100 m |
| maximum operating temperature | — | 70 °C |
| lowest potential operating temperature | — | -40 °C |
| Battery | ||
| battery life | 10 days | 18 days |
| has wireless charging | No | Yes |
| has a removable battery | No | No |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| charge time | — | 1.5 hours |
| battery power | — | 390 mAh |
| battery life with GPS on | — | 40 hours |
| Sensors | ||
| has GPS | No | Yes |
| has a compass | No | Yes |
| Has a barometer | No | Yes |
| has a gyroscope | No | Yes |
| Has a cadence sensor | No | No |
| has an accelerometer | Yes | Yes |
| Monitors perspiration | No | No |
| Has a heart rate monitor | Yes | Yes |
| Has a temperature sensor | No | No |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| release date | 2022-11-16 | 2021-03-27 |
| Has a stopwatch | Yes | Yes |
| Has smart alarm | No | No |
| warranty period | 1 years | 1 years |
| Has call control | Yes | Yes |
| Has silent alarm | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | No | No |
| has fall detection | No | No |
| has voice commands | Yes | No |
| Acquires GPS faster | No | Yes |
| Has vibrating alerts | Yes | Yes |
| Can be used to answer calls | No | No |
| has irregular heart rate warnings | No | Yes |
| has HRV tracking | — | Yes |
| measures VO2 max | — | Yes |
| Locates your phone | — | Yes |
| has a front camera | — | No |
| shows readiness level | — | Yes |
| measures resting heart rate | — | Yes |
| has fast/slow heart rate notifications | — | Yes |
| Has a built-in camera remote control function | — | No |
| Connectivity | ||
| has NFC | No | No |
| supports ANT+ | No | No |
| supports Wi-Fi | No | No |
| has a cellular module | No | No |
| Is compatible with iOS | Yes | Yes |
| Is compatible with Android | Yes | Yes |
| supports Galileo | — | Yes |
| Bluetooth version | — | 5 |
| Miscellaneous | ||
| Has passcode | Yes | Yes |
| Has auto pause | Yes | Yes |
| Is compatible with Windows | No | No |
| Is compatible with Mac OS X | No | No |
| has an external memory slot | No | No |
| Compatible with smart scales | Yes | Yes |
| has a battery level indicator | Yes | Yes |
| has a socket for a 3.5 mm audio jack | No | No |
| Compatible with external heart rate monitors | Yes | Yes |
| has aptX | — | No |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | Yes |
| Has coaching | Yes | Yes |
| Includes maps | Yes | Yes |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has live tracking | Yes | Yes |
| Has exercise diary | Yes | Yes |
| Predicts ovulation | Yes | Yes |
| Can be personalised | Yes | Yes |
| Has weight tracking | Yes | Yes |
| Predicts start date | Yes | Yes |
| Tracks water intake | Yes | Yes |
| Has inactivity alerts | Yes | Yes |
| Has period notifications | Yes | Yes |
| Has temperature tracking | Yes | No |
| Provides activity reports | Yes | Yes |
| Displays fertile window notifications | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Activity tracking | ||
| Measures pace | Yes | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | Yes | Yes |
| Designed for golf | No | No |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | No |
| Has a route tracker | Yes | No |
| Has exercise tagging | Yes | Yes |
| Has multi-sport mode | No | Yes |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | No | Yes |
Wrist Fit
Amazfit Pop 2
Sits best on wrists ~52–71mm wide (≈ 13.9–19.0cm circumference).
Amazfit T-Rex Pro
Sits best on wrists ~50–68mm wide (≈ 13.4–18.2cm circumference).
2D Dimension Schematics
Accurate scale drawings based on case dimensions. Drag to pan, Ctrl+scroll to zoom. Works for every watch regardless of photo availability.
Frequently Asked Questions
Is the Amazfit Pop 2 bigger than the Amazfit T-Rex Pro?
The Amazfit T-Rex Pro is bigger — 47.7mm vs 47.2mm case width.
Which fits a smaller wrist better, the Amazfit Pop 2 or the Amazfit T-Rex Pro?
The Amazfit Pop 2 suits wrists around 52–71mm wide, and the Amazfit T-Rex Pro around 50–68mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Amazfit Pop 2 and Amazfit T-Rex Pro side by side at true scale?
Yes — the schematics and photos above show both watches at matched scale, and our fit tool overlays each on your wrist width.