Updated 3 Oct 2017

Weight Watchers

Body Balance Bluetooth Diagnostic Scale WW910A

Snapshot: The Weight Watchers Body Balance Bluetooth Diagnostic Scale WW910A has a capacity up to 182kg and can store 10 user profiles. But how accurate is it?

Body Balance Bluetooth Diagnostic Scale WW910A
Consumer score
Avg price



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Test results

Overall score
Body fat accuracy
Weight accuracy
Weight sensitivity
Ease of use
Body fat deviation

Good points

  • OK body fat accuracy.
  • Very good weight accuracy.
  • OK weight sensitivity.
  • Easy to use.
  • Easy to set up.
  • Display easy to read.
  • Controls very easy to operate with a toe.
  • Has Wi-Fi connectivity.
  • Measurements can also be displayed on the app and stored for later review (also works without the app).
  • Identifies previous set users (although if more than one user has a similar weight measurements can get confused).


  • Problematic establishing Bluetooth connection with the app.

How we test

We took readings from 15 men and women. We then compared the results with those obtained from a DEXA (Dual-Energy X-ray Absorptiometre) scan, a machine used in hospitals for determining body fat composition.

Overall score includes:

Body fat accuracy (25%) - How accurately the scale measured body fat.
Weight accuracy (20%) - How accurately the scale measured body weight.
Weight sensitivity (10%) - How sensitive the scale was in detecting incremental changes of 100g.
Body fat deviation (15%) - Based on the reading that was furthest away from the DEXA scan. Measures how much it varied from the scan.
Ease of use (30%) - How easy the display was to read; how easy the controls were to programme and push with your toe; feet positioning; and how stable the scale was to stand on.

Key data


Avg price


HxWxD (cm)
4 x 32 x 32
Capacity (kg)
User profiles
3 x AAA


Identify previous set users
Can sync results with other products
Body Mass Index
Water %
Muscle %
Bone %

More Info