Fitbit Sense 2 vs Polar Ignite 3
Fitbit Sense 2 (2022, listed at $249) and Polar Ignite 3 (2022, listed at $329) are both smartwatches, so the choice comes down to specifics.
Specs last updated · prices are list prices
Fitbit Sense 2
Continuous EDA stress sensor + ECG and skin-temperature tracking — Fitbit's most health-focused watch.
Polar Ignite 3
Fitness watch with sleep-driven daily energy guidance and a vivid always-on AMOLED.
The verdict
On the numbers we track, Fitbit Sense 2 wins on battery life (6 days vs 5 days), price ($249 vs $329) and tracked features (6 vs 3); Polar Ignite 3 wins on weight (35 g vs 38 g).
Bottom line: on raw specs the Fitbit Sense 2 leads 3 to 1, but five spec categories are only a starting point. Match it to your phone, your main sport and your budget before you decide, or run the free quiz to see how each ranks for your answers.
Spec by spec
| Spec | Fitbit Sense 2 | Polar Ignite 3 |
|---|---|---|
| Battery (rated) | 6 days | 5 days |
| Weight | 38 g | 35 g |
| List price | $249 | $329 |
| Water rating | 5ATM | 5ATM |
| Tracked features | 6 | 3 |
| Case size | 41 mm | 43 mm |
| Display | AMOLED | AMOLED |
| Works with | both iPhone and Android | both iPhone and Android |
| Listed best for | health tracking, everyday wellness and gym and strength work | everyday wellness, running and health tracking |
| Released | 2022 | 2022 |
Trophy marks the better value on the five measurable specs. Battery is the manufacturer's rating, not our test. How we score is on the methodology page.
Feature overlap
Both have (3)
- built-in GPS
- blood-oxygen (SpO₂)
- AMOLED display
Only Fitbit Sense 2 (3)
- ECG
- contactless payments
- swim tracking
Only Polar Ignite 3 (0)
Nothing unique.
Which one should you pick?
Pick the Fitbit Sense 2 if…
- You want to spend less: it lists for $80 less.
- You want fewer charges: about 6 days per charge vs 5 days.
- You need ECG, contactless payments and swim tracking, which the Polar Ignite 3 does not list.
- Your main use is gym and strength work: it is listed for that and the Polar Ignite 3 is not.
- You might switch phones: it works with both iPhone and Android, the Polar Ignite 3 only works with Android.
Pick the Polar Ignite 3 if…
- You want a lighter watch: 35 g vs 38 g.
- Your main use is running: it is listed for that and the Fitbit Sense 2 is not.
- You might switch phones: it works with both iPhone and Android, the Fitbit Sense 2 only works with Android.
Frequently asked questions
Which has better battery life, the Fitbit Sense 2 or the Polar Ignite 3?
The Fitbit Sense 2 has the longer rated battery life: about 6 days per charge against 5 days. These are manufacturer ratings; heavy GPS, always-on display and cellular use will cut both.
Which is cheaper, the Fitbit Sense 2 or the Polar Ignite 3?
The Fitbit Sense 2 has the lower list price: $249 against $329 in our database. List prices change often, so check Amazon for today's price.
Do the Fitbit Sense 2 and Polar Ignite 3 work with iPhone and Android?
Yes, they have the same phone support: both iPhone and Android.
Which is better for swimming, the Fitbit Sense 2 or the Polar Ignite 3?
Neither has an edge on water rating: both are rated 5ATM. 5ATM is suitable for showering and pool swimming, but not for high-speed water sports or diving. Only the Fitbit Sense 2 has a dedicated swim-tracking mode in our data.
Not sure either is right for you?
Nine questions about your phone, sport, wrist and budget, scored against all of our watches with the reasoning shown.
Take the free quiz