Quick takeaway
Amazfit T-Rex Ultra leads this matchup 0 to 0 on measured spec rows and by 100 points overall. Fitbit Luxe is also about $745.00 cheaper at the latest tracked price.
Amazfit T-Rex Ultra vs Fitbit Luxe
Choose Amazfit T-Rex Ultra if...
Pick Amazfit T-Rex Ultra if its current price, brand, or design fits your shortlist better than Fitbit Luxe. It currently costs about $745.00 more, so make sure those wins matter to you.
Choose Fitbit Luxe if...
Pick Fitbit Luxe if its current price, brand, or design fits your shortlist better than Amazfit T-Rex Ultra.
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.
Display
| Spec | Amazfit T-Rex Ultra | Fitbit Luxe |
|---|---|---|
| Display Type | - | LCD or AMOLED |
Battery and power
| Spec | Amazfit T-Rex Ultra | Fitbit Luxe |
|---|---|---|
| Battery Capacity | - | 50 Milliamp Hours |
| Battery Cell Composition | - | Lithium Ion |
Connectivity
| Spec | Amazfit T-Rex Ultra | Fitbit Luxe |
|---|---|---|
| Supported Application | - | GPS, Heart Rate Monitor, Sleep Monitor |
Dimensions
| Spec | Amazfit T-Rex Ultra | Fitbit Luxe |
|---|---|---|
| Item Dimensions | - | 1.43 x 0.69 x 0.4 inches |
| Item Weight | - | 0.06 Pounds |
| Screen Size | - | 50 Millimeters |
General
| Spec | Amazfit T-Rex Ultra | Fitbit Luxe |
|---|---|---|
| ASIN | - | B09T2YLMYL |
| Brand | - | Fitbit |
| Clasp Type | - | Tang Buckle |
| Color | - | black |
| GPS | - | True |
| Metrics Measured | - | optical heart rate sensor |
| Shape | - | Heart |
| Special Feature | - | Heart Rate Monitor |
| UPC | - | 656942665052 |
| Wireless Communication Standard | - | Bluetooth |
| Brand | Amazfit | - |
| Category | Smartwatch | - |
| Operating System | Zepp OS | - |
Other
| Spec | Amazfit T-Rex Ultra | Fitbit Luxe |
|---|---|---|
| Compatible Phone Models | - | [ALL CURRENT SMARTPHONES] |
| Model Number | - | FB422BKBK-cr |
| Warranty Description | - | 90 days limited warranty |
The verdict
Based on 25 spec comparisons plus user ratings, the Amazfit T-Rex Ultra 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 Amazfit T-Rex Ultra vs Fitbit Luxe score measuring?
VSFinder compares 25 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 $809.99 for Amazfit T-Rex Ultra and $64.99 for Fitbit Luxe.