40.5 mm Case Size — 2 Smartwatches Compared

Decision table

40.5 mm Case Size: which one for what?

The 2 models on this page are scored only against each other, for the use you pick. Scores come from the spec sheets; no price and no advertising go in.

What will you use it for? Health Tracking Sport & Outdoors Battery Life Daily Use

Leads for Health Tracking: Fitbit Sense 277%

Leads for Sport & Outdoors: Fitbit Sense 265%

Leads for Battery Life: Fitbit Sense 250%

Leads for Daily Use: Fitbit Sense 262%

#2#2#2#2
Fitbit Versa 4Fitbit
40.5 mm · up to 144 hours · 50m
69% 65% 50% 62%
Why it ranks here
- Editorial tag: Health Tracking
- Blood oxygen sensor
Why it ranks here
- Editorial tag: Sport & Outdoors
- Water resistance to 50 m
Why it ranks here
Nothing stands out for this use; the score comes from overall balance.
How long does the battery last?
Why it ranks here
- Editorial tag: Daily Use
- 40.5 mm case
#1#1#1#1
Fitbit Sense 2Fitbit
40.5 mm · up to 144 hours · Yes
77% 65% 50% 62%
Why it ranks here
- Editorial tag: Health Tracking
- ECG
- Blood oxygen sensor
Why it ranks here
- Editorial tag: Sport & Outdoors
- Water resistance to 50 m
Why it ranks here
Nothing stands out for this use; the score comes from overall balance.
How long does the battery last?
Why it ranks here
- Editorial tag: Daily Use
- 40.5 mm case