Amazfit Falcon vs Amazfit T-Rex ProSize, Specs & Wrist Fit Compared
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Amazfit
Falcon
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 Falcon starts to hang over the edge. Above 52mm both sit cleanly, and the Amazfit Falcon gives you more presence.
The Amazfit T-Rex Pro wears larger than the Amazfit Falcon (47.7mm vs 47.2mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Amazfit Falcon is the slimmer of the two (13mm 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 Falcon is thinner than 66%, 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 | AmazfitFalcon | AmazfitT-Rex Pro |
|---|---|---|
| Case Width | 47.2mm | 47.7mm |
| Lug-to-Lug | 49.4mm | 47.7mm |
| Thickness | 13mm | 13.5mm |
| Weight | 64g | 59.4g |
| Shape | Circular | Circular |
| Water Resistance | 20 ATM | 10 ATM |
| GPS | 21 hours | 40 hours |
| Display | 1.28 inches | 1.3 inches |
| Always-On Display | Yes | Yes |
| Charge time | 2 hours | 1.5 hours |
| Battery life | 14 days | 18 days |
| Battery power | 500 mAh | 390 mAh |
| Has wireless charging | No | Yes |
| Has a removable battery | No | No |
| Battery life with GPS on | 21 hours | 40 hours |
| Has a solar power battery | No | No |
| Has a rechargeable battery | Yes | Yes |
| Battery life in power save mode | 720 hours | — |
| Has a battery level indicator | Yes | Yes |
| Released | 2022 | 2021 |
Battery life compared
The two are closest in everyday use and furthest apart in GPS mode, where one lasts 1.9× as long as the other (40 hours against 21 hours).
Amazfit FalconAmazfit T-Rex Pro
Battery Saver
720 hours—Smartwatch
14 days18 daysGPS
21 hours40 hours
Full Specification Comparison
122 specs| Spec | Amazfit Falcon | Amazfit T-Rex Pro |
|---|---|---|
| Design | ||
| width | 47.2 | 47.7 |
| height | 49.4 | 47.7 |
| volume | 30.31 cm³ | 30.72 cm³ |
| weight | 64 g | 59.4 g |
| thickness | 13 | 13.5 |
| ATM rating | 20 ATM | 10 ATM |
| resolution | 416 x 416 px | 360 x 360 px |
| screen size | 1.28 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 | Waterproof | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| waterproof depth rating | 200 m | 100 m |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | Yes | No |
| maximum operating temperature | 70 °C | 70 °C |
| Ingress Protection (IP) rating | IP68 | — |
| lowest potential operating temperature | -40 °C | -40 °C |
| Gorilla Glass version | — | Gorilla Glass 3 |
| has branded damage-resistant glass | — | No |
| Battery | ||
| charge time | 2 hours | 1.5 hours |
| battery life | 14 days | 18 days |
| battery power | 500 mAh | 390 mAh |
| has wireless charging | No | Yes |
| has a removable battery | No | No |
| battery life with GPS on | 21 hours | 40 hours |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| battery life in power save mode | 720 hours | — |
| Sensors | ||
| has GPS | Yes | Yes |
| has a compass | Yes | Yes |
| Has a barometer | Yes | Yes |
| has a gyroscope | Yes | Yes |
| 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 |
| Has a cadence sensor | — | No |
| Features | ||
| release date | 2022-10-17 | 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 |
| internal storage | 4GB | — |
| measures VO2 max | Yes | Yes |
| Has notifications | Yes | Yes |
| Has ECG technology | No | No |
| Locates your phone | Yes | Yes |
| has fall detection | No | No |
| has voice commands | No | No |
| Acquires GPS faster | No | Yes |
| Has vibrating alerts | Yes | Yes |
| shows readiness level | Yes | Yes |
| Can be used to answer calls | No | No |
| measures resting heart rate | Yes | Yes |
| has irregular heart rate warnings | Yes | Yes |
| has fast/slow heart rate notifications | Yes | Yes |
| Has a built-in camera remote control function | No | No |
| has HRV tracking | — | Yes |
| has a front camera | — | No |
| Connectivity | ||
| has NFC | No | No |
| Wi-Fi version | Wi-Fi 4 (802.11n) | — |
| supports Wi-Fi | Yes | No |
| supports Galileo | Yes | Yes |
| Bluetooth version | 5 | 5 |
| has a cellular module | No | No |
| Is compatible with iOS | Yes | Yes |
| Is compatible with Android | Yes | Yes |
| supports ANT+ | — | No |
| Miscellaneous | ||
| Has passcode | Yes | Yes |
| Has auto pause | Yes | Yes |
| Can upload maps | Yes | — |
| maximum Bluetooth range | 10 m | — |
| 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 |
| Provides the sunrise/sunset time | 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 | No | 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 | Yes | Yes |
| Tracks calorie intake | Yes | Yes |
| Provides sleep reports | Yes | Yes |
| Detects activities automatically | Yes | Yes |
| Has a stroke counter for swimming | Yes | Yes |
Wrist Fit
Amazfit Falcon
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 Falcon 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 Falcon or the Amazfit T-Rex Pro?
The Amazfit Falcon 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 Falcon 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.