Amazfit Pop 3R vs Garmin Venu 4 - 45mmSize, Specs & Wrist Fit Compared
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Amazfit
Pop 3R
Garmin
Venu 4 - 45mm
Which one fits you
Both need much the same wrist — roughly 47–65mm across the flat of the wrist. Neither will fit where the other won't, so decide on thickness, weight and features instead.
The Amazfit Pop 3R wears larger than the Garmin Venu 4 - 45mm (45.5mm vs 45mm case), giving it more wrist presence — and needing a wider wrist to sit cleanly.
The Amazfit Pop 3R is the slimmer of the two (10.8mm vs 12mm), so it slides under a cuff more easily.
On the wrist the Garmin Venu 4 - 45mm feels lighter (38g vs 55.48g, case only).
Among the 461 46mm watches we hold thickness for, the Amazfit Pop 3R is thinner than 97%, so it wears flatter than its width suggests.
Among the 386 45mm watches we hold thickness for, the Garmin Venu 4 - 45mm is thinner than 76%, so it wears flatter than its width suggests.
Specification Comparison
| Spec | AmazfitPop 3R | GarminVenu 4 - 45mm |
|---|---|---|
| Case Width | 45.5mm | 45mm |
| Thickness | 10.8mm | 12mm |
| Weight | 55.48g | 38g |
| Shape | Circular | Circular |
| Water Resistance | Water resistant | 5 ATM |
| GPS | No | 19 hours |
| Display | 1.43 inches | 1.4 inches |
| Always-On Display | Yes | Yes |
| Charge time | 1.5 hours | 1 hours |
| Battery life | 12 days | 12 days |
| 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 |
| Has wireless charging | — | No |
| Battery life with GPS on | — | 19 hours |
| Battery life in power save mode | — | 25 hours |
| Released | 2023 | 2025 |
Battery life compared
Runtime for every power mode either watch publishes, 1 of them directly comparable.
Amazfit Pop 3RGarmin Venu 4 - 45mm
Smartwatch
12 days12 daysBattery Saver
—25 hoursGPS
—19 hours
Full Specification Comparison
121 specs| Spec | Amazfit Pop 3R | Garmin Venu 4 - 45mm |
|---|---|---|
| Design | ||
| width | 45.5 | 45 |
| height | 45.5 | 45 |
| volume | 22.36 cm³ | 24.3 cm³ |
| weight | 55.48 g | 38 g |
| thickness | 10.8 | 12 |
| resolution | 466 x 466 px | 454 x 454 px |
| screen size | 1.43 inches | 1.4 inches |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Has a display | Yes | Yes |
| pixel density | 460 ppi | 458 ppi |
| water resistance | Water resistant | Waterproof |
| Always-On Display | Yes | Yes |
| has a touch screen | Yes | Yes |
| is designed for kids | No | No |
| Watch band is replaceable | Yes | Yes |
| Has sapphire glass display | No | No |
| Ingress Protection (IP) rating | IP68 | — |
| has branded damage-resistant glass | No | Yes |
| ATM rating | — | 5 ATM |
| width of band | — | 22 mm |
| Gorilla Glass version | — | Gorilla Glass 3 |
| waterproof depth rating | — | 50 m |
| maximum operating temperature | — | 55 °C |
| lowest potential operating temperature | — | -20 °C |
| Battery | ||
| charge time | 1.5 hours | 1 hours |
| battery life | 12 days | 12 days |
| has a removable battery | No | No |
| Has a solar power battery | No | No |
| has a rechargeable battery | Yes | Yes |
| has wireless charging | — | No |
| battery life with GPS on | — | 19 hours |
| battery life in power save mode | — | 25 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 | Yes |
| Monitors blood oxygenation levels | Yes | Yes |
| Features | ||
| release date | 2023-06-29 | 2025-09-17 |
| 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 | Yes |
| Locates your phone | Yes | Yes |
| has fall detection | No | Yes |
| has voice commands | Yes | Yes |
| Acquires GPS faster | No | Yes |
| Has vibrating alerts | Yes | Yes |
| Can be used to answer calls | Yes | Yes |
| has irregular heart rate warnings | No | Yes |
| Has a built-in camera remote control function | No | No |
| has HRV tracking | — | Yes |
| internal storage | — | 8GB |
| measures VO2 max | — | Yes |
| has a front camera | — | No |
| shows readiness level | — | Yes |
| measures resting heart rate | — | Yes |
| has fast/slow heart rate notifications | — | Yes |
| Connectivity | ||
| has NFC | No | Yes |
| supports ANT+ | No | Yes |
| supports Wi-Fi | No | Yes |
| supports Galileo | No | Yes |
| Bluetooth version | 5.2 | — |
| has a cellular module | No | No |
| Is compatible with iOS | Yes | Yes |
| Is compatible with Android | Yes | Yes |
| Miscellaneous | ||
| Has passcode | Yes | — |
| Is compatible with Windows | No | Yes |
| Is compatible with Mac OS X | No | Yes |
| has an external memory slot | No | No |
| 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 |
| Has auto pause | — | Yes |
| Available on PC | — | Yes |
| Compatible with smart scales | — | Yes |
| Provides the sunrise/sunset time | — | Yes |
| App & Software | ||
| Ad-free | Yes | Yes |
| Free app | Yes | Yes |
| Tracks BMI | Yes | Yes |
| Supports routes | Yes | Yes |
| Has achievements | Yes | Yes |
| Has goal setting | Yes | Yes |
| Has exercise diary | 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 | Yes |
| Provides activity reports | Yes | Yes |
| Counts how many calories you've burned | Yes | Yes |
| Has coaching | — | Yes |
| Includes maps | — | Yes |
| Has live tracking | — | Yes |
| Predicts ovulation | — | Yes |
| Doesn’t require account | — | No |
| Displays fertile window notifications | — | Yes |
| Activity tracking | ||
| Measures pace | Yes | Yes |
| Tracks distance | Yes | Yes |
| Tracks elevation | Yes | Yes |
| Designed for golf | No | Yes |
| Tracks your sleep | Yes | Yes |
| Tracks steps taken | Yes | Yes |
| Designed for diving | No | No |
| Has a route tracker | Yes | Yes |
| 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 3R
Sits best on wrists ~48–65mm wide (≈ 12.8–17.4cm circumference).
Garmin Venu 4 - 45mm
Sits best on wrists ~47–64mm wide (≈ 12.6–17.1cm 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 3R bigger than the Garmin Venu 4 - 45mm?
The Amazfit Pop 3R is bigger — 45.5mm vs 45mm case width.
Which fits a smaller wrist better, the Amazfit Pop 3R or the Garmin Venu 4 - 45mm?
The Amazfit Pop 3R suits wrists around 48–65mm wide, and the Garmin Venu 4 - 45mm around 47–64mm. The one with the smaller lower bound is the safer pick for a small wrist.
Can I see the Amazfit Pop 3R and Garmin Venu 4 - 45mm 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.