Xiaomi S400 Review

What Is Xiaomi Body Composition Scale S400?

Xiaomi Body Composition Scale S400 is a budget-friendly smart body composition scale built for people who want more than a basic weight reading without paying premium smart-scale prices. In this Xiaomi Body Composition Scale S400 review, we’re looking at how it tracks weight, body composition, heart rate, balance, baby or pet weighing, and guest measurements through the Xiaomi Home app. The Xiaomi Body Composition Scale S400 cost is one of its biggest hooks, especially when compared with pricier options from TANITA, InBody, and RunStar. Xiaomi is already known for affordable phones, wearables, smart home gadgets, and lifestyle tech, and this scale fits that same “useful, clean, and not wildly expensive” lane. We’ll also cover Xiaomi Body Composition Scale S400 pros & cons and answer the big gym-bag question: is Xiaomi Body Composition Scale S400 worth it?

Xiaomi Body Composition Scale S400 HNE Index

HNE Index

4.5 out of 5

Popularity: 43K followers

Ms. Exercise

User Experience: 4.2/5

Value for money: 4.8/5

Ease of Use: 4.4/5

Beginner Friendly: 4.5/5

Best For

• Beginners tracking weight and body composition trends.
• Xiaomi Home users who like connected devices.
• Families needing multiple user profiles.
• Budget shoppers wanting smart-scale features.

Not Ideal For

• Athletes needing clinical-grade body composition testing.
• Users who want full health-app syncing everywhere.
• Anyone with implanted medical electronic devices.
• People who dislike app-based setup.

Fun Fact

Xiaomi started as a software-focused company before becoming famous for phones, wearables, scooters, air fryers, smart lights, and now bathroom scales that know more about us than our jeans do.

Xiaomi Body Composition Scale S400 Pros & Cons

Pros

✅ Xiaomi Body Composition Scale S400 offers strong smart-scale value at a low everyday price.

✅ It measures weight plus a broad set of body composition estimates in the Xiaomi Home app.

✅ The large electrode pads and anti-slip surface make daily weigh-ins feel simple and stable.

✅ It supports practical modes like baby weighing, guest mode, balance testing, and small object weighing.

Cons

❌ Body composition estimates should be treated as trends, not medical measurements.

❌ App syncing can feel limiting if your fitness data lives outside Xiaomi Home.

❌ The display is simple, so most deeper insights require opening the app.

How Xiaomi Body Composition Scale S400 Works

The Xiaomi Body Composition Scale S400 works like a normal bathroom scale first: you step on it, stand still, and it measures your weight. The smarter part comes from bioelectrical impedance analysis, often called BIA. In plain human language, the scale sends a very small electrical signal through the body and uses that response, along with your profile details, to estimate things like body fat, muscle mass, water percentage, and other composition metrics.

For best results, consistency matters more than drama. Ms. Exercise would tell you to weigh at a similar time of day, on a hard flat floor, with dry bare feet. The Xiaomi Home app then stores your readings, shows trends, and helps you follow progress over time. The key is not to panic over one odd number. Look at the pattern. Your body is not a spreadsheet, even if the app does its best impression of one.

Xiaomi Body Composition Scale S400 Key Features

• Measures weight from 0.1 kg to 150 kg.
• Body composition estimates through dual-frequency BIA technology.
• Tracks multiple health metrics in the Xiaomi Home app.
• Supports up to 36 user profiles in typical product listings.
• Includes guest mode for temporary measurements.
• Baby holder mode helps weigh infants or pets.
• Balance testing mode adds a simple stability check.
• Small object weighing supports lighter items from 0.1 kg.

Xiaomi Body Composition Scale S400 Vs. Other Similar Brands

The smart-scale space is packed with choices, from low-cost Bluetooth scales to premium body analyzers that look ready to interview you about your protein intake. At the budget end, most scales focus on weight, BMI, and estimated body composition. In the middle, you start seeing better apps, extra user modes, and more polished tracking. At the higher end, brands like TANITA and InBody lean harder into body-analysis heritage, multi-frequency measurement, and fitness-focused interpretation. RunStar sits in the feature-heavy home scale lane, often offering large displays, handle sensors on some models, and lots of metrics for people who want more data on the screen.

What makes the Xiaomi Body Composition Scale S400 stand out is not that it beats every premium competitor on technical depth. It doesn’t. The win is value. In this Xiaomi Body Composition Scale S400 review, the scale earns attention because it gives everyday users a clean design, Xiaomi Home integration, multiple weighing modes, broad body metric tracking, and a very approachable price. Mr. Healthy likes that it lowers the barrier for people who just want to start tracking progress without turning the bathroom into a sports science lab.

SIMILAR BRANDS

How Xiaomi Body Composition Scale S400 Compares

Compared with TANITA BC-401, InBody Dial H30, RunStar 8E SmartScan Pro, and RunStar 8E SmartScan Ultra, Xiaomi Body Composition Scale S400 is the low-cost, low-fuss pick. TANITA brings long-standing body composition credibility. InBody Dial H30 feels more premium and fitness-serious. RunStar models often chase bigger displays and more on-device feedback. Xiaomi’s advantage is that it gives you enough smart tracking for everyday progress at a price that doesn’t make your wallet do burpees. This matters if you’re starting a weight-loss plan, returning to exercise, or simply trying to see whether your habits are moving in the right direction. The Xiaomi Body Composition Scale S400 pros & cons are clear here: it’s not the deepest analyzer, but it may be the easiest one to justify buying.

Xiaomi Body Composition Scale S400 Cost

The Xiaomi Body Composition Scale S400 cost is simple: you buy the scale once, then use it with the Xiaomi Home app. Pricing varies by retailer and country, but the official UK price has commonly sat around £19.99, making it one of the more affordable smart body composition scales from a major tech brand.

Pricing Overview

The Xiaomi Home app is free to download and handles setup, saved measurements, user profiles, body composition records, guest mode, and other connected scale functions.

• Xiaomi Body Composition Scale S400: around £19.99 in the UK.
• Typical EU retailer range: around €25 to €40.
• Typical import or marketplace range: around $25 to $50.
• Replacement batteries: usually a small extra household cost.

The Xiaomi Body Composition Scale S400 cost is especially attractive when compared with premium body analyzers. You don’t get every advanced feature that a higher-end model offers, but you do get practical tracking, a tidy app experience, and useful household modes for a modest upfront price. That’s why Xiaomi Body Composition Scale S400 cost comes up so often in buying decisions.

Deals & Discounts

Deals are usually retailer-based rather than subscription-based. You may see lower prices during seasonal sales, bundle events, clearance periods, or marketplace promotions, especially when newer Xiaomi accessories arrive.

• Seasonal tech sales around Black Friday.
• Retailer coupons on Xiaomi accessories.
• Bundle offers with wearables or smart home products.
• Marketplace discounts on open-box units.

How To Get Started With Xiaomi Body Composition Scale S400

Getting started is fairly easy, especially if you’ve used any Xiaomi smart home product before. The scale itself is simple: add batteries, place it on a hard flat surface, and pair it with the Xiaomi Home app. The only part that may slow you down is choosing the right app region, signing into your Xiaomi account, and allowing Bluetooth permissions. Once paired, daily use is quick. Step on, stand still, wait for the reading, and check the app when you want deeper details. This Xiaomi Body Composition Scale S400 review gives setup a friendly thumbs-up, with one small eyebrow raise for people who prefer zero-app gadgets.

Option One: Set Up With Xiaomi Home

• Install the Xiaomi Home app on your phone.
• Create or sign into a Xiaomi account.
• Insert the required batteries into the scale.
• Place the scale on a firm, level floor.
• Open the app and tap the plus icon.
• Select Xiaomi Body Composition Scale S400.
• Follow the Bluetooth pairing instructions.
• Add your profile details for better estimates.

Option Two: Use A Guest Measurement

• Open the Xiaomi Home app.
• Choose guest or visitor measurement mode.
• Ask the guest to step on barefoot.
• Wait until the measurement finishes.
• Review the result without saving it permanently.

Option Three: Use Baby Or Pet Weighing

• Open baby holder mode in the app.
• Weigh yourself first if prompted.
• Hold the baby or pet safely.
• Step back on the scale.
• Let the app calculate the difference.

Once it’s set up, treat the scale as a trend tracker. Use it at the same time of day, ideally before breakfast or after your usual bathroom routine. Keep your feet clean and dry, and don’t move it between soft rugs and hard floors if you want consistent readings. Mr. Healthy’s rule is simple: don’t let one reading boss you around. Weekly and monthly trends are much more useful than a single morning surprise after salty noodles.

Xiaomi Body Composition Scale S400 Customer Reviews

Customers praise Xiaomi Body Composition Scale S400 for its value and broad tracking features, though not every experience matches that.

Positive review summary: users who like Xiaomi Body Composition Scale S400 tend to appreciate the low price, clean look, quick readings, and the amount of body data available for such an affordable scale. Some buyers also see it as a sensible upgrade when they want more than a basic weight-only scale. “Well I’m probably going to buy the S400” -Reddit

Negative review summary: the most common frustration is not usually the hardware, but the ecosystem. Some users complain that Xiaomi Home, Mi Fitness, Google Fit, Samsung Health, Fitbit, or Apple Health syncing can be awkward or incomplete depending on region and app setup. “does not allow data transfer” -Google Play

Final Verdict of Our Xiaomi Body Composition Scale S400 Review: Is It Worth It?

So, is Xiaomi Body Composition Scale S400 worth it? For most beginners, families, and budget-minded health trackers, yes. This Xiaomi Body Composition Scale S400 review finds it strongest as an affordable daily progress tool rather than a clinical body-analysis machine. The Xiaomi Body Composition Scale S400 pros & cons are balanced: great price, useful features, and simple tracking on one side; limited ecosystem syncing and estimated body metrics on the other. If your goal is building awareness and consistency, it’s a smart buy.

Xiaomi Body Composition Scale S400 FAQs

1. Can Xiaomi Body Composition Scale S400 Be Used By Children?

Children can usually use it for weight tracking, but body composition estimates may be less meaningful for younger users. Use the numbers as general information only, and ask a qualified health professional if you’re monitoring a child’s growth, weight, or health.

2. Is Xiaomi Body Composition Scale S400 Safe During Pregnancy?

Pregnant users should avoid relying on body composition readings from BIA scales unless a healthcare professional says otherwise. Weight-only tracking may be useful, but body fat, water, and muscle estimates can be unreliable during pregnancy because the body is changing quickly.

3. Does Xiaomi Body Composition Scale S400 Work Without The App?

Yes, it can show your weight like a normal digital scale. However, most smart features, saved trends, body composition metrics, user profiles, guest mode, balance testing, and baby weighing are managed through the Xiaomi Home app.

4. How Accurate Is Xiaomi Body Composition Scale S400?

Weight readings should be reasonably consistent when the scale is used correctly on a hard flat floor. Body composition numbers are estimates, not lab results. Use them to watch long-term trends, not to make medical or performance decisions from one reading.

5. How Often Should You Weigh Yourself?

That depends on your goals and mindset. Some people like daily trend tracking, while others prefer once or twice per week. If daily weighing stresses you out, choose a calmer schedule. Consistency matters more than frequency.