Amazfit Active vs Garmin Instinct E 40mm
Size, specs & wrist fit compared
Which one fits you
Under 14.5 cm (5.7 in) round, the Garmin Instinct E 40mm's lugs overhang and the Amazfit Active's do not; the Amazfit Active fills the wrist at 13–13 cm, the Garmin Instinct E 40mm at 15–17 cm.
What else differs
- Screen: the Amazfit Active uses a bright AMOLED screen, the Garmin Instinct E 40mm a memory-in-pixel screen that is easy to read in sunlight and sips battery.
- Battery: about 14 days each in everyday use; 21 hours for the Garmin Instinct E 40mm against 16 hours for the Amazfit Active with GPS on.
2.8mm thinner, the Amazfit Active is the one that slides under a shirt cuff.
Among the 40 smartwatches 40mm across that we hold thickness for, the Garmin Instinct E 40mm is thicker than 98%, so it sits higher on the wrist than most of its size.
The Amazfit Active is 2.4mm wider, 2.8mm thinner and 14g lighter than the Garmin Instinct E 40mm.
Amazfit
Active
Garmin
Instinct E 40mm
Amazfit Active or Garmin Instinct E 40mm by wrist size
| Wrist round (mm left each side) | Amazfit Active | Garmin Instinct E 40mm≈46mm lug to lug, est. |
|---|---|---|
| 14 cm / 5.5 in | Balanced (4.6mm) | Overhangs (0.4mm over) |
| 15 cm / 5.9 in | Balanced (6.2mm) | Bold (1.2mm) |
| 16 cm / 6.3 in | Understated (7.9mm) | Sweet spot (2.8mm) |
| 17 cm / 6.7 in | Understated (9.5mm) | Balanced (4.4mm) |
| 18 cm / 7.1 in | Understated (11.1mm) | Balanced (6mm) |
| 19 cm / 7.5 in | Understated (12.7mm) | Balanced (7.6mm) |
| 20 cm / 7.9 in | Understated (14.3mm) | Balanced (9.3mm) |
Switch or add watches
Amazfit
Active
Garmin
Instinct E 40mm
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Battery life compared
Amazfit ActiveGarmin Instinct E 40mm
Battery saver
30 days35 daysExpedition
—17 daysSmartwatch
14 days14 daysHeavy use
10 days—Max battery GPS
—43 hoursGPS only
16 hours21 hoursAll systems
—14 hours
More comparisons
2D Dimension Schematics
- Amazfit Active 42.4mm × 35.9mm · 10.8mm thick
- Garmin Instinct E 40mm 40mm × ≈46mm (est.) · 13.6mm thick
3D preview
Amazfit Active vs Garmin Instinct E 40mm on a wrist
Specifications
The short version
7 key specs| Spec | AmazfitActive | GarminInstinct E 40mm |
|---|---|---|
| Case Width | 42.36mm | 40mm |
| Lug-to-Lug | 35.9mm | 40mm |
| Thickness | 10.75mm | 13.6mm |
| Weight | 27g | 41g |
| Shape | Rectangle | Circular |
| Display type | OLED/AMOLED | Monochrome, sunlight-visible, transflective memory-in-pixel (MIP) |
| Released | 2023 | 2025 |