Withings Steel HR 36mm vs Steel HR 40mm
Size, specs & wrist fit compared
Withings Steel HR 36mm
36.3mm
Withings Steel HR 40mm
39.5mm
Which one fits you
Under 14 cm (5.5 in) round, the 40mm's lugs overhang and the 36mm's do not; the 36mm fills the wrist at 13.5–15 cm, the 40mm at 15–16.5 cm.
What else differs
- Battery: about 25 days each in everyday use.
Among the 25 smartwatches 36mm across that we hold thickness for, the Steel HR 36mm is thicker than 100%, so it sits higher on the wrist than most of its size.
The Steel HR 40mm is 3.2mm wider and 10g heavier than the Steel HR 36mm.
Steel HR 36mm
Steel HR 40mm
Case width
36.3mm
39.5mm+3.2mm
Thickness
13mm
13mmsame
Weight
39g
49g+10g
Steel HR: 36mm or 40mm by wrist size
| Wrist round (mm left each side) | 36mm≈41.5mm lug to lug, est. | 40mm≈45.5mm lug to lug, est. |
|---|---|---|
| 14 cm / 5.5 in | Sweet spot (1.8mm) | Overhangs (0.2mm over) |
| 15 cm / 5.9 in | Sweet spot (3.4mm) | Sweet spot (1.4mm) |
| 16 cm / 6.3 in | Balanced (5.1mm) | Sweet spot (3.1mm) |
| 17 cm / 6.7 in | Balanced (6.7mm) | Balanced (4.7mm) |
| 18 cm / 7.1 in | Balanced (8.3mm) | Balanced (6.3mm) |
| 19 cm / 7.5 in | Understated (9.9mm) | Balanced (7.9mm) |
| 20 cm / 7.9 in | Understated (11.5mm) | Balanced (9.5mm) |
Switch or add watches
Withings
Steel HR 36mm
Withings
Steel HR 40mm
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Battery life compared
36mm40mm
Battery life
25 days25 days
2D Dimension Schematics
- Withings Steel HR 36mm 36.3mm × ≈41.5mm (est.) · 13mm thick
- Withings Steel HR 40mm 39.5mm × ≈45.5mm (est.) · 13mm thick
3D preview
Steel HR 36mm vs Steel HR 40mm on a wrist
Specifications
The short version
9 key specs| Spec | WithingsSteel HR 36mm | WithingsSteel HR 40mm |
|---|---|---|
| Case Width | 36.3mm | 39.5mm |
| Thickness | 13mm | 13mm |
| Weight | 39g | 49g |
| Shape | Circular | Circular |
| Water Resistance | Waterproof | Waterproof |
| GPS | No | No |
| Display type | LCD | LCD |
| Battery life | 25 days | 25 days |
| Released | 2020 | 2020 |
Where the specifications differ
5 differences| Spec | Withings Steel HR 36mm | Withings Steel HR 40mm |
|---|---|---|
| Design | ||
| width | 36.3 | 39.5 |
| height | 36.3 | 39.5 |
| volume | 17.13 cm³ | 20.28 cm³ |
| weight | 39 g | 49 g |
| width of band | 18 mm | 20 mm |
The other 76 specifications both list are identical.