Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Garmin - vivosmart 5 | Samsung - Galaxy Fit 3 |
|---|---|---|
| Sport modes | 14 | 100 |
| Battery life | 7 days | 13 days |
Between the vivosmart 5 and Galaxy Fit 3, the vivosmart 5 comes out ahead in several specs, while the Galaxy Fit 3 wins on sport modes / battery life. Overall, the vivosmart 5 scores 63.9 and the Galaxy Fit 3 scores 70.9 on our Mars Score.
Which should you buy?
The Galaxy Fit 3 edges ahead on the Mars Score (63.9 vs 70.9), but the 7.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
The vivosmart 5 does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the Galaxy Fit 3 if you care most about sport modes / battery life. Its strongest claims are sport modes, battery life. The single most decisive one: Sport modes — 86.00 more. 100 vs 14.
Both ship with comparable gps, spo2, water resistance, so those specs do not separate the two — focus on the differences below.
Bottom line: the Galaxy Fit 3 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Garmin - vivosmart 5 or Samsung - Galaxy Fit 3?
Samsung - Galaxy Fit 3 leads the current Mars Score by 7.0 points.The more useful decision is the trade-off behind that result: compare battery life against the way you will actually use the product.
Choose Garmin - vivosmart 5 if…
Garmin - vivosmart 5 does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose Samsung - Galaxy Fit 3 if…
Samsung - Galaxy Fit 3 has the measurable edge on sport modes, battery days.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Garmin - vivosmart 5 wins
- No decisive advantages.
Why Samsung - Galaxy Fit 3 wins
- ▲Sport modes — 86.00 more. 100 vs 14.
- ▲Battery life — 85.71% more. 13 days vs 7 days.
Spec comparison
Fitness
| Spec | Garmin - vivosmart 5 | Samsung - Galaxy Fit 3 |
|---|---|---|
| Form factor | Band | Band |
| GPS | false | false |
| Heart rate | true | true |
| SpO2 | true | true |
| Sleep tracking | true | true |
| Sport modes | 14 | 100lead |
Battery
| Spec | Garmin - vivosmart 5 | Samsung - Galaxy Fit 3 |
|---|---|---|
| Battery lifeⓘ | 7 days | 13 dayslead |
| Water resistanceⓘ | 5 ATM | 5 ATM |
Design
| Spec | Garmin - vivosmart 5 | Samsung - Galaxy Fit 3 |
|---|---|---|
| Display size | 0.73 " | 1.6 "lead |
| Weight | 26 g | 18.5 glead |