Fitbit Inspire 2 vs Charge 4 (2026): What to Know & Buy Now
The Inspire 2 and Charge 4 sat at different rungs of Fitbit’s old lineup — the Inspire 2 a slim, simple band, the Charge 4 a fuller-featured tracker with GPS. Both are now discontinued, so this is mostly useful as background; the current equivalents are the Inspire 3 and Charge 6.
How they compared
| Feature | Inspire 2 | Charge 4 |
|---|---|---|
| Built-in GPS | No | Yes |
| SpO2 | No | Yes |
| Active Zone Minutes | Yes | Yes |
| Display | Slim mono OLED | Larger mono OLED |
| Battery | ~10 days | ~7 days (much less with GPS) |
| Best for | Light, simple tracking | Runners/cyclists wanting GPS |
In short: the Inspire 2 was for people who wanted a slim, affordable band; the Charge 4 added built-in GPS and SpO2 for those who wanted to track outdoor distance without a phone.
What to buy in 2026
The same split exists in Fitbit’s current line:
Fitbit Inspire 3
- ✓Slim, light and affordable
- ✓Color screen + SpO2
- ✓~10-day battery
- ✓Works with iPhone and Android
- ✕No built-in GPS (uses phone)
- ✕Some insights need Premium
Fitbit Charge 6
- ✓Built-in GPS for phone-free runs/rides
- ✓Bigger, brighter display
- ✓Strong all-round tracking
- ✓Works with iPhone and Android
- ✕Short battery in GPS mode
- ✕Pricier than the Inspire
Choose the Inspire 3 if you want slim and cheap; the Charge 6 if you want built-in GPS. See the full best fitness trackers hub or best budget trackers for more.
FAQs
What was the main difference between the Inspire 2 and Charge 4?
The Charge 4 had built-in GPS and SpO2 and a larger display; the Inspire 2 was slimmer, simpler and cheaper with longer battery but no GPS. The Charge 4 suited runners/cyclists; the Inspire 2 suited light everyday tracking.
Are the Inspire 2 and Charge 4 still sold?
No, both are discontinued. The current equivalents are the Fitbit Inspire 3 (slim/value) and the Fitbit Charge 6 (with built-in GPS).
Which current Fitbit should I buy?
Pick the Inspire 3 if you want a slim, affordable band, or the Charge 6 if you want built-in GPS for phone-free runs and rides.
Affiliate disclosure: As an Amazon Associate we earn from qualifying purchases. Links above are affiliate links and may earn us a commission at no extra cost to you.