Fitbit Watch Sizes & Specifications
10 Fitbit models with case dimensions. Set your wrist width below to see which of them actually fit before you shop.
Every Fitbit model, measured
Set your wrist width and the table tells you where each of the 10 measured models lands — how much clearance you get per side, and which ones hang over the edge. Open a row for its full spec sheet.
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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.
10 of 10 models sit on this wrist without the lugs hanging over the edge.
| Model | Your Fit | Width | Offer | |
|---|---|---|---|---|
Ace LTE | Balanced5.1mm clear | 41.04mm | Check offer | |
Sense 2 | Balanced7.3mm clear | 40.5mm | Check offer | |
Versa 4 | Balanced7.3mm clear | 40.4mm | Check offer | |
Sense | Balanced7.3mm clear | 40.4mm | Check offer | |
Versa 3 | Balanced7.3mm clear | 40.4mm | Check offer | |
Versa 2 | Balanced7.5mm clear | 40mm | Check offer | |
Versa Lite | Balanced7.5mm clear | 40mm | Check offer | |
Versa | Balanced7.5mm clear | 40mm | Check offer | |
Ionic | Balanced8.2mm clear | 38.6mm | Check offer | |
Blaze | Balanced6.5mm clear | 42mm | Check offer |
The Fitbit extremes, ranked
Smallest Fitbit Watches
The most compact Fitbit models by case width
- 1
Ionic38.6mm wide - 2
Versa 240mm wide - 3
Versa Lite40mm wide - 4
Versa40mm wide - 5
Versa 440.4mm wide
Thinnest Fitbit Watches
The slimmest Fitbit profiles by case thickness
- 1Versa Lite11.2mm thick
- 2Versa11.2mm thick
- 3Versa 212mm thick
- 4Ionic12.2mm thick
- 5Versa 412.3mm thick
Best Fitbit for Small Wrists
The smallest footprints — under 46mm top to bottom
- 1Versa 240mm wide
- 2Versa Lite40mm wide
- 3Versa40mm wide
- 4Versa 440.4mm wide
- 5
Sense40.4mm wide
The ends of the Fitbit range
Smallest Fitbit
Ionic
38.6mm
Largest Fitbit
Blaze
42mm
Thinnest Fitbit
Versa Lite
11.2mm thick
Browse Fitbit watches by size
Fitbit-sized watches from other brands
Fitbit centres on 40mm. These are the closest matches we hold elsewhere in the database — one model per brand, same footprint on the wrist.
TAG Heuer
Aquaracer Professional 200 Solargraph 40 UK Limited Edition
40mm
Xiaomi
Redmi Watch 6
40mm · 9.9mm thick
Vivo
Watch GT 2 - Bluetooth
40.2mm · 11mm thick
Samsung
Galaxy Watch8 - LTE · 40mm
40.4mm · 8.6mm thick
Huawei
Watch Fit 4 Pro
40mm · 9.3mm thick
Amazfit
Bip 6
40.2mm · 10.45mm thick
Garmin
Instinct® E – 40 mm
40mm · 13.6mm thick
Certina
DS Action 40 Quartz Stainless Steel - Yellow Gold / Blue
40mm · 11.2mm thick