Looking for an honest Casio G-Shock GBM-2100 vs Withings ScanWatch Nova Smartwatch comparison in 2026? We scored both smartwatches on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. In our overall scoring the Withings ScanWatch Nova Smartwatch comes out ahead 49/100 to 55/100 — a 6-point gap. The widest gap is in battery life, where the Withings ScanWatch Nova Smartwatch pulls noticeably ahead.
Casio
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Withings ScanWatch Nova Smartwatch narrowly beats the Casio G-Shock GBM-2100 in the smartwatches category, especially in battery life (720h vs 300h battery), scoring 55 vs 49. If you want the better overall smartwatches, Withings ScanWatch Nova Smartwatch is the recommended choice.
Picking Withings ScanWatch Nova Smartwatch over Casio G-Shock GBM-2100 means trading these off.
Rien d'essentiel — les spécifications sont pratiquement identiques
$200
Scores are relative within the smartwatchescategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✓ Pros
✗ Cons
✓ Pros
✗ Cons
| Spec | Casio G-Shock GBM-2100 | Withings ScanWatch Nova SmartwatchW |
|---|---|---|
| Display | 1.2" | 1.32"✓ |
| Display Type | — | AMOLED with analog hands overlay |
| Resolution | — | 416 x 416 pixels |
| OS | — | Proprietary (Withings OS) |
| Heart Rate | — | Optical HR 24/7 |
| SpO2 | — | Yes (blood oxygen) |
| ECG | — | Yes |
| Temperature | — | Wrist skin temperature |
| GPS | — | Built-in GPS |
| Workout Modes | — | 30+ |
| Swim Proof | — | 50m water resistance |
| Battery Life | 300hrs | 720hrs✓ |
| Bluetooth | — | Bluetooth 5.0 |
| Case Material | — | Stainless Steel |
| Water Resistance | — | WR50 |
| Weight | 51g | 44g✓ |
| Price | 200$ | — |
Buy Casio G-Shock GBM-2100 if…
Choose the Casio G-Shock GBM-2100 if budget is your top priority — it offers competitive specs at a lower price point.
Buy Withings ScanWatch Nova Smartwatch if…
Buy the Withings ScanWatch Nova Smartwatch if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
Withings ScanWatch Nova Smartwatch narrowly beats the Casio G-Shock GBM-2100 in the smartwatches category, especially in battery life (720h vs 300h battery), scoring 55 vs 49. If you want the better overall smartwatches, Withings ScanWatch Nova Smartwatch is the recommended choice.
No, Withings ScanWatch Nova Smartwatch scores higher (86 vs 49).
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Choose the Casio G-Shock GBM-2100 if budget is your top priority — it offers competitive specs at a lower price point.
Buy the Withings ScanWatch Nova Smartwatch if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
Withings ScanWatch Nova Smartwatch lasts longer with 720 hours vs 300 hours for the other.
Withings ScanWatch Nova Smartwatch has the larger display (1.32" vs 1.2").
Withings ScanWatch Nova Smartwatch is lighter at 44g vs 51g.
Reviewed by VersusMatrix Editorial Team
Last updated: May 21, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.