Samsung Galaxy Watch6 LTE 40mm vs Galaxy Watch8 LTE 40mm
Size, specs & wrist fit compared
Which one fits you
Both keep their lugs inside any wrist from 13 cm (5.1 in) round; the Galaxy Watch6 LTE 40mm fills the wrist at 13–14.5 cm, the Galaxy Watch8 LTE 40mm at 14–15.5 cm.
What else differs
- Battery: 2 days for the Galaxy Watch8 LTE 40mm against 30 hours for the Galaxy Watch6 LTE 40mm in everyday use.
The Galaxy Watch6 LTE 40mm is the thinnest of smartwatches 39mm across and the Galaxy Watch8 LTE 40mm is the thinnest of those 40mm across — so both wear flatter than their widths suggest.
The Galaxy Watch8 LTE 40mm is 1.6mm wider, 2.3mm longer, 0.4mm thinner and 1.3g heavier than the Galaxy Watch6 LTE 40mm.
Galaxy Watch6 LTE 40mm
Galaxy Watch8 LTE 40mm
Galaxy Watch6 LTE 40mm or Galaxy Watch8 LTE 40mm by wrist size
| Wrist round (mm left each side) | Galaxy Watch6 LTE 40mm | Galaxy Watch8 LTE 40mm |
|---|---|---|
| 14 cm / 5.5 in | Sweet spot (2.4mm) | Sweet spot (1.2mm) |
| 15 cm / 5.9 in | Balanced (4mm) | Sweet spot (2.8mm) |
| 16 cm / 6.3 in | Balanced (5.6mm) | Balanced (4.5mm) |
| 17 cm / 6.7 in | Balanced (7.2mm) | Balanced (6.1mm) |
| 18 cm / 7.1 in | Understated (8.8mm) | Balanced (7.7mm) |
| 19 cm / 7.5 in | Understated (10.4mm) | Understated (9.3mm) |
| 20 cm / 7.9 in | Understated (12.1mm) | Understated (10.9mm) |
Switch or add watches
Samsung
Galaxy Watch6 LTE 40mm
Samsung
Galaxy Watch8 LTE 40mm
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Battery life compared
Watch6 LTE 40mmWatch8 LTE 40mm
Battery saver
100 hours—Battery life
—2 daysSmartwatch
1.25 days—
More comparisons
2D Dimension Schematics
- Samsung Galaxy Watch6 LTE 40mm 38.8mm × 40.4mm · 9mm thick
- Samsung Galaxy Watch8 LTE 40mm 40.4mm × 42.7mm · 8.6mm thick
3D preview
Galaxy Watch6 LTE 40mm vs Galaxy Watch8 LTE 40mm on a wrist
Specifications
The short version
11 key specs| Spec | SamsungGalaxy Watch6 LTE 40mm | SamsungGalaxy Watch8 LTE 40mm |
|---|---|---|
| Case Width | 38.8mm | 40.4mm |
| Lug-to-Lug | 40.4mm | 42.7mm |
| Thickness | 9mm | 8.6mm |
| Weight | 28.7g | 30g |
| Shape | Circular | Circular |
| Water Resistance | 5 ATM | 5 ATM |
| GPS | Yes | Yes |
| Display type | OLED/AMOLED | OLED/AMOLED |
| Screen size | 1.3 inches | 1.34 inches |
| Battery life | 1.25 days | 2 days |
| Released | 2023 | 2025 |
Where the specifications differ
17 differences| Spec | Samsung Galaxy Watch6 LTE 40mm | Samsung Galaxy Watch8 LTE 40mm |
|---|---|---|
| Design | ||
| width | 38.8 | 40.4 |
| height | 40.4 | 42.7 |
| volume | 14.11 cm³ | 14.84 cm³ |
| weight | 28.7 g | 30 g |
| thickness | 9 | 8.6 |
| resolution | 432 x 432 px | 438 x 438 px |
| screen size | 1.3 inches | 1.34 inches |
| pixel density | 453 ppi | 327 ppi |
| water resistance | Waterproof | Water resistant |
| Battery | ||
| battery life | 1.25 days | 2 days |
| battery power | 300 mAh | 325 mAh |
| Features | ||
| release date | 2023-07-26 | 2025-07-09 |
| has HRV tracking | No | Yes |
| internal storage | 16GB | 32GB |
| Acquires GPS faster | No | Yes |
| shows readiness level | No | Yes |
| Activity tracking | ||
| Has multi-sport mode | Yes | No |
The other 91 specifications both list are identical.
Full Samsung Galaxy Watch6 LTE 40mm specifications →Full Samsung Galaxy Watch8 LTE 40mm specifications →