Quick takeaway
Xiaomi Watch S3 leads this matchup 0 to 0 on measured spec rows and by 100 points overall. Fitbit Charge 6 is also about $129.05 cheaper at the latest tracked price.
Fitbit Charge 6 vs Xiaomi Watch S3
Choose Fitbit Charge 6 if...
Pick Fitbit Charge 6 if its current price, brand, or design fits your shortlist better than Xiaomi Watch S3.
Choose Xiaomi Watch S3 if...
Pick Xiaomi Watch S3 if its current price, brand, or design fits your shortlist better than Fitbit Charge 6. It currently costs about $129.05 more, so make sure those wins matter to you.
Side-by-side specs
This is the raw comparison view. It is there for the rows that actually decide the purchase, not just the headline winner badge.
Battery and power
| Spec | Fitbit Charge 6 | Xiaomi Watch S3 |
|---|---|---|
| Battery Cell Composition | Lithium Ion | - |
Connectivity
| Spec | Fitbit Charge 6 | Xiaomi Watch S3 |
|---|---|---|
| Supported Application | GPS, Heart Rate Monitor | - |
Dimensions
| Spec | Fitbit Charge 6 | Xiaomi Watch S3 |
|---|---|---|
| Item Dimensions | 6 x 4 x 4 inches | - |
| Screen Size | 1.04 Inches | - |
General
| Spec | Fitbit Charge 6 | Xiaomi Watch S3 |
|---|---|---|
| ASIN | B0CC62ZG1M | - |
| Additional Features | Activity Tracker, Multisport Tracker, GPS, ECG, Contactless Payments, Sleep Monitor | - |
| Brand | Fitbit | - |
| Built In Media | Device, Band, Charging Cable | - |
| Color | Black Case w/ Black Band | - |
| GPS | Gps enabled | - |
| Metrics Measured | Optical Heart Rate Sensor | - |
| Shape | Rectangular | - |
| Special Feature | Activity Tracker, Multisport Tracker, GPS, ECG, Contactless Payments, Sleep Monitor | - |
| UPC | 840353901063 | - |
| Wireless Communication Standard | Bluetooth | - |
| Brand | - | Xiaomi |
| Category | - | Smartwatch |
| Operating System | - | Xiaomi HyperOS |
Other
| Spec | Fitbit Charge 6 | Xiaomi Watch S3 |
|---|---|---|
| Compatible Phone Models | Compatible with iOS and Android devices | - |
| Model Name | Fitbit Charge 6 | - |
The verdict
Based on 22 spec comparisons plus user ratings, the Xiaomi Watch S3 comes out ahead with a stronger overall score.
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Comparison FAQ
These answers explain how the score is built, when the lower-scoring option still makes sense, and what to confirm before you buy.
What is the Fitbit Charge 6 vs Xiaomi Watch S3 score measuring?
VSFinder compares 22 visible spec rows, then blends those wins with current price and Amazon rating signals so the page reflects both raw specs and real shopping context.
When does the lower-scoring option still make sense?
The lower-scoring model can still be the better buy if the few areas where it wins line up with how you shop. That matters most when those wins cover the exact features you care about more than the overall leader.
What should I confirm before I buy?
Confirm the live Amazon listing for price and availability, then double-check the few spec rows that matter most to your use case. We currently track $119.95 for Fitbit Charge 6 and $249.00 for Xiaomi Watch S3.