HEAD-TO-HEAD COMPARISON

Withings ScanWatch 2 42mm vs Samsung Galaxy Watch8 40mm

We break down the differences, cut through the marketing noise, and tell you exactly which one wins and why.

OVERALL WINNER
Withings

Withings ScanWatch 2 42mm

PROS
  • + Excellent GPS accuracy
  • + Always-on display
View on Amazon
Samsung

Samsung Galaxy Watch8 40mm

PROS
  • + Advanced workout detection
  • + Always-on display
View on Amazon

THE VERDICT

ScanWatch 2 42mm is the stronger buy for most people because it combines the broader spec lead with a more defensible price. Galaxy Watch8 40mm is not a bad pick, but it only makes more sense if its narrower strengths line up exactly with your workload.

Buy ScanWatch 2 42mm if you want the safest all-round choice in this price tier.
Pick Galaxy Watch8 40mm only when one of its standout strengths matters more than balanced value.
Do not compare these two in isolation; keep your actual budget ceiling in view.

CRITERIA BREAKDOWN

Price Positioning

Withings ScanWatch 2 42mm
Samsung Galaxy Watch8 40mm

Galaxy Watch8 40mm lands in this segment and is the easier buy if your goal is maximum value.

Overall Score

Withings ScanWatch 2 42mm
Samsung Galaxy Watch8 40mm

ScanWatch 2 42mm carries the stronger OverLKD score and therefore the broader all-round recommendation.

Chip

Withings ScanWatch 2 42mm
Samsung Galaxy Watch8 40mm

Both products are close enough on chip that this row is not a deciding factor alone.

Display

Withings ScanWatch 2 42mm
Samsung Galaxy Watch8 40mm

ScanWatch 2 42mm leads on display based on the harder spec line.

Battery

Withings ScanWatch 2 42mm
Samsung Galaxy Watch8 40mm

Both products are close enough on battery that this row is not a deciding factor alone.

GPS

Withings ScanWatch 2 42mm
Samsung Galaxy Watch8 40mm

Both products are close enough on gps that this row is not a deciding factor alone.

THE BIG DIFFERENCES

  • ScanWatch 2 42mm wins the value argument while keeping the gap to Galaxy Watch8 40mm at around this tier.
  • ScanWatch 2 42mm leads on Display: 42mm Hybrid OLED.
  • Galaxy Watch8 40mm is only the better pick if you strongly prefer its brand or design direction.
SPECWithings ScanWatch 2 42mmSamsung Galaxy Watch8 40mmREADOUT
ChipWithings customExynos W1000Both products are close enough on chip that this row is not a deciding factor alone.
Display42mm Hybrid OLED40mm AMOLEDScanWatch 2 42mm leads on display based on the harder spec line.
Battery30 days30 hrsBoth products are close enough on battery that this row is not a deciding factor alone.
GPSNoYesBoth products are close enough on gps that this row is not a deciding factor alone.
Health FeaturesECG, SpO2, Temperature, Sleep Apnea DetectionECG, Body Composition, Skin TemperatureBoth products are close enough on health features that this row is not a deciding factor alone.
OSWithings OSWear OS 6 / One UI WatchBoth products are close enough on os that this row is not a deciding factor alone.
CompatibilityiOS & AndroidAndroidBoth products are close enough on compatibility that this row is not a deciding factor alone.

SPECIFICATIONS

SPECIFICATIONS
BEST OVERALL
Withings ScanWatch 2 42mm
EXCELLENT ALTERNATIVE
Samsung Galaxy Watch8 40mm
ACTIONView on Amazon ↗View on Amazon ↗
OVERLKD SCORE
62/100
58/100
CHIPWithings customExynos W1000
DISPLAY42mm Hybrid OLED40mm AMOLED
BATTERY30 days30 hrs
GPSNoYes
HEALTH FEATURESECG, SpO2, Temperature, Sleep Apnea DetectionECG, Body Composition, Skin Temperature
OSWithings OSWear OS 6 / One UI Watch
COMPATIBILITYiOS & AndroidAndroid

BUYING TAKEAWAY

If you want the shortest answer: buy ScanWatch 2 42mm unless Galaxy Watch8 40mm's specific advantage is exactly what you need.

Winner: Withings ScanWatch 2 42mm