FAQ
TL;DR: 100% repeatability is possible; “only this one worked confidently.” For stable readings, pick solid sensors and keep the scale level. [Elektroda, Borutka, post #17959471]
Why it matters: This FAQ helps home users fix inconsistent bathroom-scale readings and pick user‑tested models that stay consistent.
Quick Facts
- Repeatability improves dramatically when you keep the scale in exactly the same spot; mark the floor to align feet. [Elektroda, Michelson, post #17360097]
- Cheap designs with one–two load cells can change readings based on where you stand; build quality is critical. [Elektroda, Borutka, post #17357194]
- Proven example: a Soehnle with one centered cell delivered 50 g resolution and cost about €100. [Elektroda, Felini, post #17357286]
- A 4-sensor Zelmer read correctly against barbell plates, but only when placed in the exact same location. [Elektroda, Michelson, post #17360097]
- Huawei AH100 showed “100%” repeatability, even standing asymmetrically on one foot. [Elektroda, Borutka, post #17959471]
How do I fix inconsistent readings on my bathroom scale?
Placement is everything. “It must be exactly in the same place.” 1. Put it on a hard, level floor and mark foot positions. 2. Weigh three times without shifting stance. 3. Validate using known weights, like barbell plates, then leave it there. [Elektroda, Michelson, post #17360097]
Why does the number change when I shift my stance or move my hands?
Some budget scales use one–two load cells and flex asymmetrically. “The way and place of standing on the scale has a big impact.” Build and sensor mounting quality also matter, so tiny posture changes can swing results. Stand centered and still. [Elektroda, Borutka, post #17357194]
Should my weight be the same on one leg and on both legs?
Yes. A correct scale should read the same regardless of stance. As one expert put it, “It should be exactly the same.” If your reading changes between one leg and two, your scale’s geometry or placement is suspect. [Elektroda, PanAGD, post #17357602]
Does floor type and location really matter to digital scales?
Yes. Uneven or curved floors skew measurements. Use the same spot every time. As one user noted, “Sometimes the curved floor skews the measurements.” Keep conditions identical between weigh‑ins to improve repeatability. [Elektroda, kurozukin, post #17356756]
Are medical or balance scales worth it if I need accuracy?
If accuracy is your priority, medical‑grade scales are a safe bet. They take more space, but properly leveled they deliver consistent results without fuss. For homes, ensure solid placement and keep them stationary. [Elektroda, kurozukin, post #17356756]
Are balance-beam scales the most reliable option?
Yes, traditional balance mechanisms remain very reliable for consistent readings. If digital drift frustrates you, a balance‑beam type can remove electronics from the equation. Expect more bulk and manual operation. [Elektroda, Anonymous, post #17361484]
Is Xiaomi Smart Scale reliable for repeated measurements?
Users report stable back‑to‑back readings. If you use one spot and stand still, the Xiaomi Smart Scale can deliver the same result across consecutive measurements. Consistency still depends on placement. [Elektroda, kurozukin, post #17360613]
Is Huawei AH100 consistent even when I stand asymmetrically?
Yes. One user measured “100%” repeatability, even standing asymmetrically on one foot. They concluded “only this one worked confidently” among several in‑store tests. That indicates robust load handling. [Elektroda, Borutka, post #17959471]
Can a single centered load cell be accurate (e.g., Soehnle)?
Yes. One Soehnle with a single center cell showed the same result whether you stood centered or to the side. It offered 50 g resolution and cost about €100, suggesting careful calibration and assembly. [Elektroda, Felini, post #17357286]
Do four-sensor scales like Zelmer perform better?
A four‑sensor Zelmer matched barbell loads, indicating good absolute accuracy. However, repeatability depended on keeping it in the exact same location. Mark the floor and don’t move the scale between sessions. [Elektroda, Michelson, post #17360097]
Is it possible for a cheap scale to show more on one leg?
Yes. With fewer or poorly mounted sensors, readings can depend on where your weight lands. Stance and foot placement can change results on such designs. Aim for better build quality and keep posture consistent. [Elektroda, Borutka, post #17357194]
Has anyone seen a bathroom scale jump by 2 kg from just moving an arm?
Yes. One user reported, “I stand, move my hand, and then weigh 2 kilos more.” That’s an edge case indicating instability on that specific unit. If you see this, recheck placement and consider another model. [Elektroda, k4rol13, post #17357342]
Does moving the scale between rooms affect readings?
Yes. Changing rooms often changes floor level and stiffness. The same scale can read differently unless it’s kept “exactly in the same place.” Mark its footprint and leave it there for repeatable results. [Elektroda, Michelson, post #17360097]
Which specific models did users recommend here?
Positive mentions include Xiaomi Smart Scale for repeatable back‑to‑back readings and Huawei AH100 for “100%” repeatability, even asymmetrically. Another user recommended Beurer GS 203 as a solid pick. Always confirm placement and stance. [Elektroda, Bluth, post #18308976]
