Apple Watch SE 3 GPS 40mm vs Watch SE 3 GPS 44mm
Size, specs & wrist fit compared
Which one fits you
Both keep their lugs inside any wrist from 13.5 cm (5.3 in) round; the 40mm fills the wrist at 13–14.5 cm, the 44mm at 14.5–16 cm.
What else differs
- Screen: the 44mm has the larger screen, 1.78 in across against 1.57 in on the 40mm.
- Battery: about 18 hours each in everyday use.
The Watch SE 3 GPS 44mm is 4mm wider, 4mm longer and 6.6g heavier than the Watch SE 3 GPS 40mm.
Watch SE 3 GPS 40mm
Watch SE 3 GPS 44mm
Case width
34mm
38mm+4mm
Lug-to-lug
40mm
44mm+4mm
Thickness
10.7mm
10.7mmsame
Weight
26.3g
32.9g+6.6g
Watch SE 3 GPS: 40mm or 44mm by wrist size
| Wrist round (mm left each side) | 40mm | 44mm |
|---|---|---|
| 14 cm / 5.5 in | Sweet spot (2.6mm) | Bold (0.6mm) |
| 15 cm / 5.9 in | Balanced (4.2mm) | Sweet spot (2.2mm) |
| 16 cm / 6.3 in | Balanced (5.8mm) | Sweet spot (3.8mm) |
| 17 cm / 6.7 in | Balanced (7.4mm) | Balanced (5.4mm) |
| 18 cm / 7.1 in | Understated (9mm) | Balanced (7mm) |
| 19 cm / 7.5 in | Understated (10.6mm) | Balanced (8.6mm) |
| 20 cm / 7.9 in | Understated (12.3mm) | Understated (10.3mm) |
Switch or add watches
Apple
Watch SE 3 GPS 40mm
Apple
Watch SE 3 GPS 44mm
As an Amazon Associate, WatchFitTool earns from qualifying purchases.
Battery life compared
40mm44mm
Battery saver
32 hours32 hoursSmartwatch
0.75 days0.75 days
More comparisons
2D Dimension Schematics
- Apple Watch SE 3 GPS 40mm 34mm × 40mm · 10.7mm thick
- Apple Watch SE 3 GPS 44mm 38mm × 44mm · 10.7mm thick
3D preview
Watch SE 3 GPS 40mm vs Watch SE 3 GPS 44mm on a wrist
Specifications
The short version
11 key specs| Spec | AppleWatch SE 3 GPS 40mm | AppleWatch SE 3 GPS 44mm |
|---|---|---|
| Case Width | 34mm | 38mm |
| Lug-to-Lug | 40mm | 44mm |
| Thickness | 10.74mm | 10.7mm |
| Weight | 26.3g | 32.9g |
| Shape | Rectangle | Rectangle |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.57 inches | 1.78 inches |
| Battery life | 0.75 days | 0.75 days |
| Released | 2025 | 2025 |
Where the specifications differ
8 differences| Spec | Apple Watch SE 3 GPS 40mm | Apple Watch SE 3 GPS 44mm |
|---|---|---|
| Design | ||
| width | 34 | 38 |
| height | 40 | 44 |
| volume | 14.61 cm³ | 17.89 cm³ |
| weight | 26.3 g | 32.9 g |
| thickness | 10.74 | 10.7 |
| resolution | 324 x 394 px | 368 x 448 px |
| screen size | 1.57 inches | 1.78 inches |
| pixel density | 325 ppi | 326 ppi |
The other 101 specifications both list are identical.
Full Apple Watch SE 3 GPS 40mm specifications →Full Apple Watch SE 3 GPS 44mm specifications →