Umidigi Uwatch 3 vs Uwatch 3S
Size, specs & wrist fit compared
Umidigi Uwatch 3

41.6mm
Umidigi Uwatch 3S

44mm
Which one fits you
Under 15.5 cm (6.1 in) round, the 44mm's lugs overhang and the 41.6mm's do not; the 41.6mm fills the wrist at 15.5–17.5 cm, the 44mm at 16.5–18.5 cm.
What else differs
- Battery: 15 days for the 44mm against 10 days for the 41.6mm in everyday use.
The Uwatch 3S is 2.4mm wider, 1.3mm thicker and 13g lighter than the Uwatch 3.
Uwatch 3
Uwatch 3S
Case width
41.6mm
44mm+2.4mm
Thickness
11.6mm
12.9mm+1.3mm
Weight
38g
25g−13g
Uwatch 3: 41.6mm or 44mm by wrist size
| Wrist round (mm left each side) | 41.6mm≈48mm lug to lug, est. | 44mm≈50.5mm lug to lug, est. |
|---|---|---|
| 14 cm / 5.5 in | Overhangs (1.4mm over) | Overhangs (2.7mm over) |
| 15 cm / 5.9 in | Bold (0.2mm) | Overhangs (1.1mm over) |
| 16 cm / 6.3 in | Sweet spot (1.8mm) | Bold (0.6mm) |
| 17 cm / 6.7 in | Sweet spot (3.4mm) | Sweet spot (2.2mm) |
| 18 cm / 7.1 in | Balanced (5mm) | Sweet spot (3.8mm) |
| 19 cm / 7.5 in | Balanced (6.6mm) | Balanced (5.4mm) |
| 20 cm / 7.9 in | Balanced (8.3mm) | Balanced (7mm) |
Switch or add watches
Umidigi
Uwatch 3
Umidigi
Uwatch 3S
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Battery life compared
Furthest apart in Battery life mode, where the Uwatch 3S lasts 1.5× as long as the Uwatch 3 (15 days against 10 days).
Uwatch 3Uwatch 3S
Battery life
10 days15 days
2D Dimension Schematics
- Umidigi Uwatch 3 41.6mm × ≈48mm (est.) · 11.6mm thick
- Umidigi Uwatch 3S 44mm × ≈50.5mm (est.) · 12.9mm thick
3D preview
Uwatch 3 vs Uwatch 3S on a wrist
Specifications
The short version
10 key specs| Spec | UmidigiUwatch 3 | UmidigiUwatch 3S |
|---|---|---|
| Case Width | 41.6mm | 44mm |
| Thickness | 11.6mm | 12.9mm |
| Weight | 38g | 25g |
| Shape | Circular | Circular |
| Water Resistance | Waterproof | Water resistant |
| GPS | No | No |
| Display type | LCD | LCD |
| Screen size | 1.3 inches | 1.3 inches |
| Battery life | 10 days | 15 days |
| Released | 2019 | 2020 |
Where the specifications differ
19 differences| Spec | Umidigi Uwatch 3 | Umidigi Uwatch 3S |
|---|---|---|
| Design | ||
| width | 41.6 | 44 |
| height | 41.6 | 44 |
| volume | 20.07 cm³ | 24.97 cm³ |
| weight | 38 g | 25 g |
| thickness | 11.6 | 12.9 |
| width of band | 19 mm | 22 mm |
| water resistance | Waterproof | Water resistant |
| Battery | ||
| battery life | 10 days | 15 days |
| has wireless charging | No | Yes |
| Sensors | ||
| has a compass | No | Yes |
| has a gyroscope | Yes | No |
| Monitors blood oxygenation levels | No | Yes |
| Features | ||
| release date | 2019-09-16 | 2020-10-21 |
| Miscellaneous | ||
| Is compatible with Windows | No | Yes |
| App & Software | ||
| Has weight tracking | No | Yes |
| Tracks water intake | No | Yes |
| Activity tracking | ||
| Has exercise tagging | Yes | No |
| Has multi-sport mode | Yes | No |
| Tracks calorie intake | No | Yes |
The other 57 specifications both list are identical.