Fitbit Watches Under 40mm
1 Fitbit model in the 0–40mm range. Compact sizing that suits smaller wrists and dressier looks.
Which of these fits your wrist?
Roughly a 14.7cm wrist circumference — the measurement a tape gives you. Compared against lug-to-lug where we have it, case width otherwise.
1 of 1 models sit on this wrist without the lugs hanging over the edge.
| Model | Your Fit | Width | |
|---|---|---|---|
| Ionic | Balanced8.2mm clear | 38.6mm |
Same size, other brands
The middle of this group sits around 39mm. These are the closest matches we hold from other brands — useful when the size is right but the Fitbit isn't.
TAG Heuer
Carrera Automatic Stainless Steel / Silver - Arabic / Korea
39mm · 11.5mm thick
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Tissot
PRC 100 Solar Quartz 39 Stainless Steel / Ice Blue / Bracelet
39mm · 9.22mm thick
Apple
Watch Series 11 - GPS + Cellular · Aluminium · 46mm
39mm · 9.7mm thick
Xiaomi
Redmi Watch Move
38.9mm · 10.8mm thick
Certina
DS PH200M 39 Stainless Steel / Brown Gradient / Mesh
39mm · 11.9mm thick
Zenith
G.F.J. Calibre 135
39mm
Honor
Watch 5
39.4mm · 11mm thick
Samsung
Galaxy Watch FE - 40mm
39.3mm · 9.8mm thick