| # | Product | Best for | Rating |
|---|---|---|---|
| 1 | RENPHO Smart Body Fat Scale | ⭐ Best smart scale | —/10 |
| 2 | Salter Digital Bathroom Scale | Best non-smart | —/10 |
| 3 | Redi Tape Body Measurement Tape | Best for measurements | —/10 |
The picks in depth
RENPHO Smart Body Fat Scale
⭐ Best smart scaleBluetooth, 13 body metrics, free app, syncs to Apple Health/MyFitnessPal. Accurate within ±0.1kg.
View on Amazon →Salter Digital Bathroom Scale
Best non-smartLarge platform, clear digital display, auto zero. No app required. Reliable and accurate.
View on Amazon →Redi Tape Body Measurement Tape
Best for measurementsFlexible retractable tape for waist, hip, chest measurements. Essential alongside weight for tracking body composition.
View on Amazon →What to look for
For most people: any accurate digital scale plus a measuring tape is more informative than a smart scale alone. Smart scales estimate body fat via bioimpedance — the readings vary with hydration and time of day. Use them for trends, not absolute values.
Frequently asked
Are smart scales accurate for body fat?
Not clinically, but usefully. Bioimpedance estimates are ±5% compared to DEXA scans. Consistency matters more than accuracy — weigh at the same time every day (morning, after bathroom, before eating) to get comparable readings.
Which unit should UK scales display?
Most UK scales display kg, stones+lbs, and lbs. For medical/clinical use, kg is standard. Most UK adults still think of their weight in stones and lbs for personal reference.