Fitbit Air vs Fitbit Charge 6
Fitbit Air (2025, listed at $129) and Fitbit Charge 6 (2023, listed at $159) are both fitness bands, so the choice comes down to specifics.
Specs last updated · prices are list prices
Fitbit Air
Fitbit's newest lightweight band — focused wellness tracking with a crisp AMOLED display.
Fitbit Charge 6
The most full-featured fitness band — built-in GPS, ECG and Google Maps on the wrist.
The verdict
On the numbers we track, Fitbit Air wins on battery life (10 days vs 7 days), weight (22 g vs 23 g) and price ($129 vs $159); Fitbit Charge 6 wins on tracked features (6 vs 2).
Bottom line: on raw specs the Fitbit Air 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 Air | Fitbit Charge 6 |
|---|---|---|
| Battery (rated) | 10 days | 7 days |
| Weight | 22 g | 23 g |
| List price | $129 | $159 |
| Water rating | 5ATM | 5ATM |
| Tracked features | 2 | 6 |
| Case size | 36 mm | 36 mm |
| Display | AMOLED | AMOLED |
| Works with | both iPhone and Android | both iPhone and Android |
| Listed best for | everyday wellness and health tracking | everyday wellness, health tracking and gym and strength work |
| Released | 2025 | 2023 |
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 (2)
- blood-oxygen (SpO₂)
- AMOLED display
Only Fitbit Air (0)
Nothing unique.
Only Fitbit Charge 6 (4)
- built-in GPS
- ECG
- contactless payments
- swim tracking
Which one should you pick?
Pick the Fitbit Air if…
- You want to spend less: it lists for $30 less.
- You want fewer charges: about 10 days per charge vs 7 days.
- You want a lighter watch: 22 g vs 23 g.
- You might switch phones: it works with both iPhone and Android, the Fitbit Charge 6 only works with Android.
- You want the newer model (2025 vs 2023).
Skip it if…
- • You want to run or ride without your phone — it has no built-in GPS.
- • You want a big, easy-to-read screen — the case we list is only 36 mm.
Pick the Fitbit Charge 6 if…
- You need built-in GPS, ECG, contactless payments and swim tracking, which the Fitbit Air does not list.
- Your main use is gym and strength work: it is listed for that and the Fitbit Air is not.
- You might switch phones: it works with both iPhone and Android, the Fitbit Air only works with Android.
Skip it if…
- • You want a big, easy-to-read screen — the case we list is only 36 mm.
Frequently asked questions
Which has better battery life, the Fitbit Air or the Fitbit Charge 6?
The Fitbit Air has the longer rated battery life: about 10 days per charge against 7 days. These are manufacturer ratings; heavy GPS, always-on display and cellular use will cut both.
Which is cheaper, the Fitbit Air or the Fitbit Charge 6?
The Fitbit Air has the lower list price: $129 against $159 in our database. List prices change often, so check Amazon for today's price.
Do the Fitbit Air and Fitbit Charge 6 work with iPhone and Android?
Yes, they have the same phone support: both iPhone and Android.
Which is better for swimming, the Fitbit Air or the Fitbit Charge 6?
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 Charge 6 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 quizWhere each one ranks #1 in our quiz
Fitbit Air
It is not the top pick for any standard quiz profile.