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Wyze Scale Ultra BodyScan vs Etekcity Smart Fitness Scale ESF-551
Which one has the downsides you can live with?
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The short answer
Wyze Scale Ultra BodyScan ranks higher (#2 vs #4 of 8) and scores better on weight accuracy & consistency, app & syncing. Etekcity Smart Fitness Scale ESF-551 wins on durability & battery.
The biggest complaint about the Wyze Scale Ultra BodyScan is body fat and muscle readings jump around; for the Etekcity Smart Fitness Scale ESF-551 it's app connection hiccups. Pick the one whose catch bothers you less.
Side by side
| Wyze Scale Ultra BodyScan | Etekcity Smart Fitness Scale ESF-551 | |
|---|---|---|
| Rank in smart scales | #2 | #4 |
| Price tier | $$$ | $ |
| Type | Wi-Fi + Bluetooth | Bluetooth |
| Amazon 1–2★ share | 5% | 3% |
| Overall score | 3.9 | 3.6 |
| Weight accuracy & consistency | 5.0 | 3.5 |
| Body composition (as tested) | 3.0 | — |
| App & syncing | 4.0 | 3.0 |
| Multiple users | 4.0 | 4.0 |
| Durability & battery | 3.5 | 4.0 |
Price tiers: $ under $40 · $$ $40–100 · $$$ over $100. Highlighted = clearly better (a score gap of 0.3 or more, or a 1–2★ share at least 3 points lower). Scores are explained, with sources, on each product's page.
Top complaints
Wyze Scale Ultra BodyScan
- Body fat and muscle readings jump around
PCMag saw body fat and muscle mass vary across repeated weigh-ins (less muscle after breakfast than an hour earlier), with body fat sometimes 5% off the HumeHealth Body Pod.
Source: PCMag review - Mixed accuracy and Bluetooth issues for owners
Amazon's review summary says accuracy and connectivity are mixed, with some owners reporting inconsistent readings and Bluetooth connection problems.
- Disposable batteries and a lot of scrolling
PCMag prefers rechargeable models; four AAAs last up to eight months. It also had to scroll a long way in the app to find comparative values.
Source: PCMag review
Etekcity Smart Fitness Scale ESF-551
- App connection hiccups
Wirecutter's author had some connectivity issues with the app, though Amazon's review summary says it connects seamlessly by Bluetooth.
- No Wi-Fi
The Amazon listing advertises Bluetooth app sync only, so your phone needs to be nearby to log readings.
Source: Amazon.com product page
Who should pick which
Pick the Wyze Scale Ultra BodyScan if
Strength trainers who want arm, leg and torso breakdowns
Very precise weight (it registered a 6.8 oz phone)
Wi-Fi sync plus a safe mode for pregnancy and pacemakers
Skip it if: You're just starting out and only need weight; You want a rechargeable battery; You need consistent body-fat numbers day to day
Pick the Etekcity Smart Fitness Scale ESF-551 if
A cheap, well-rated scale with app tracking
A big, bright LED readout
Zero-current mode (Etekcity says it's a safe weigh-in option)
Skip it if: You want Wi-Fi sync; You want expert-tested body-fat accuracy; You want stats on the scale's screen, not just in the app
We don't list prices — they change daily. Paid links.