Fitbit (Google)
Fitbit Charge 6
$159.95
Released 2023-10
Best Fitness Trackers · head-to-head
Fitbit Charge 6 vs Xiaomi Smart Band 9
A sourced, side-by-side comparison. Fitbit Charge 6 is cheaper at $159.95. Every spec and price links to its source.
No photo yet
Xiaomi
Xiaomi Smart Band 9
—
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Fitbit Charge 6 | Xiaomi Smart Band 9 |
|---|---|---|
| US price | $159.95 | — |
| Brand | Fitbit (Google) | Xiaomi |
| Released | 2023-10 | — |
| Form factor | band | band |
| Display | AMOLED 1.04in | AMOLED 1.62in |
| Battery days | 7 | 21 |
| Gps | Yes | No |
| Spo2 | Yes | Yes |
| Ecg | Yes | No |
| Subscription required | No | No |
| Water resistance (m) | 50 | 50 |
| Release | 2023 | — |
Sources — Fitbit Charge 6: androidauthority.com (verified 2026-06-15). Xiaomi Smart Band 9: mi.com (verified 2026-07-08).
What's the difference between the Fitbit Charge 6 and Xiaomi Smart Band 9?
Where the two actually differ on the specs we track (4 of 8). Matching specs are omitted.
- Display: Fitbit Charge 6 AMOLED 1.04in vs Xiaomi Smart Band 9 AMOLED 1.62in
- Battery days: Fitbit Charge 6 7 vs Xiaomi Smart Band 9 21
- Gps: Fitbit Charge 6 true vs Xiaomi Smart Band 9 false
- Ecg: Fitbit Charge 6 true vs Xiaomi Smart Band 9 false
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Fitbit Charge 6
Three whitelisted testers (DC Rainmaker, TechRadar, Tom's Guide) field-tested the exact Charge 6. All praise sleep tracking and improved heart-rate accuracy at a low price, but the built-in GPS is the recurring flaw: reliable only when the strap is worn loose, which then hurts HR. Battery landed near six days. (3 sourced reviews, 3 lab-tested.)
Praised: Above-average sleep tracking, close to Oura-ring reference; Heart-rate accuracy genuinely improved over the Charge 5; Feature-packed (ECG, Google Wallet/Maps, HR broadcast) at a low $159 price.
Flagged: Built-in GPS drops out / won't lock when strap is worn snug; Tightness trade-off: loosening for GPS degrades heart-rate accuracy; Best HR features and advanced sleep data locked behind Fitbit Premium.
Xiaomi Smart Band 9
No sourced tester review yet.