Fitbit Sense 2: specs, who it fits and compatible phones
Fitbit Sense 2 is a smartwatch released in 2022 that works with iPhone and Android. It lists Standard GPS, 5ATM and Fitbit Pay.
Specifications
| Release year | 2022 |
|---|---|
| Case size | 40.5 mm |
| Display | AMOLED |
| Battery as listed | 6+ days |
| Water rating | 5ATM |
| Case material | Aluminum |
| GPS type | Standard GPS |
| Operating system | Fitbit OS |
| Works with | iPhone and Android |
| Connection | None |
| Contactless wallet | Fitbit Pay |
| Plan needed | Optional |
| Health sensors | SpO2, HRV, Skin temperature, ECG |
| Safety features | Fall detection |
Who it fits
- Works with iPhone and Android.
- Lists SOS or fall detection, see our guide for older adults.
- Lists an exact water rating of 5ATM or higher.
How it compares
Closest models from Fitbit
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Fitbit Versa 4 | 2022 | - | Up to 6 days | 5ATM | Standard GPS | iOS and Android |
| Fitbit Charge 5 | 2021 | - | Up to 7 days | 5ATM | Standard GPS | iOS and Android |
| Fitbit Versa 3 | 2020 | 40 mm | 6+ days | 5ATM | Standard GPS | iOS and Android |
Closest models from other brands
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Polar Ignite 3 | 2022 | 43 mm | Up to 5 days · 30 hours GPS | 3ATM | Standard GPS | iOS and Android |
| Polar Pacer | 2022 | 45 mm | Up to 7 days · 35 hours GPS | 5ATM | Standard GPS | iOS and Android |
| Polar Pacer Pro | 2022 | 45 mm | Up to 7 days · 35 hours of GPS (100 hours in saver mode) | 5ATM | Standard GPS | iOS and Android |
Compared with Fitbit Charge 5, Fitbit Sense 2 lists a newer release year (2022 against 2021).
Compared with Fitbit Versa 3, Fitbit Sense 2 lists a newer release year (2022 against 2020).
Compared with Polar Ignite 3, Fitbit Sense 2 lists Aluminum case material, where Polar Ignite 3 lists Polymer/metal and a contactless wallet (Fitbit Pay), which Polar Ignite 3 does not list.
Compared with Polar Pacer, Fitbit Sense 2 lists a smaller case (40.5 mm against 45 mm), Aluminum case material, where Polar Pacer lists Polymer and a contactless wallet (Fitbit Pay), which Polar Pacer does not list.
Compared with Polar Pacer Pro, Fitbit Sense 2 lists a smaller case (40.5 mm against 45 mm), Aluminum case material, where Polar Pacer Pro lists Aluminum/polymer and a contactless wallet (Fitbit Pay), which Polar Pacer Pro does not list.
Only values listed exactly are compared.
Position in the catalog
Its listed battery of 6 days is above 2% of 46 smartwatches with a single plain days value. Its case size of 40.5 mm is larger than 4% of 52 smartwatches with a single exact size. Its exact water rating of 5ATM is above 4% of 78 smartwatches with a single exact ATM rating. It was released in 2022. Among 128 smartwatches with an exact release year, 24% were released in 2022 or earlier and 91% were released in 2022 or later.
Phone compatibility and plan
An optional plan adds features. Check the maker's page for terms.
Sensors and features are listed as the maker names them and are not medical measurements.
Related guides and lists
- Battery life explained
- Phone compatibility
- Water resistance ratings
- Sensors explained
- Fitbit smartwatches
- All models
Last verified September 26, 2026
Features change with updates. Check the maker's current details. See our methodology