Xiaomi Mijia Body Fat Scale Review: Comprehensive Health Metrics at a Low Price

Xiaomi Mijia Body Fat Scale has 300,000+ reviews on JD.com with a 4.4/5 rating at ¥109 ($15). Users appreciate the BIA technology that measures body fat, muscle mass, bone mass, water percentage, and 10+ other metrics, the automatic user recognition for up to 10 family members, and the value at just ¥30 more than the basic weight-only scale. The main complaints are that BIA readings can vary based on hydration levels, and the ITO-coated electrode surface works less reliably for users with very dry feet. Conclusion: ✅ Worth Buying — the best value smart body composition scale under ¥150.

Introduction

The Xiaomi Mijia Body Fat Scale is the upgraded version of their hugely popular Body Scale 2. For just ¥30 more than the basic model (¥109 vs ¥79), you get BIA bioelectrical impedance technology that measures body composition far beyond just weight.

With 300,000+ reviews on JD.com and a 4.4/5 rating, it’s the best-selling body composition scale in China. We analyzed user feedback to determine whether the extra metrics are accurate enough for practical health tracking.

Specifications

Feature	Xiaomi Body Fat Scale	Huawei Scale 3	Yunmai Mini Body Fat	Renpho ES-PCS19
Price (JD)	¥109 ($15)	¥129 ($18)	¥119 ($16)	¥149 ($20)
Measurement	Weight + 10 body metrics	Weight + 8 body metrics	Weight + 14 body metrics	Weight + 13 body metrics
BIA Electrodes	ITO-coated glass (4 electrodes)	ITO-coated glass (4 electrodes)	Stainless steel + ITO (4 electrodes)	Tempered glass (4 electrodes)
Metrics	Weight, BMI, BF%, Muscle, Bone, Water, BMR, Visceral Fat, Protein, Body Age	Weight, BMI, BF%, Muscle, Bone, Water, BMR, Visceral Fat	Weight, BMI, BF%, Muscle, Bone, Water, BMR, Visceral Fat, Protein, Metabolic Age	Weight, BMI, BF%, Muscle, Bone, Water, BMR, Visceral Fat, Protein
User Recognition	✅ Auto (up to 10)	✅ Auto (up to 10)	✅ Auto (up to 10)	✅ Auto (up to 20)
Connectivity	Bluetooth 5.0	Bluetooth + Wi-Fi	Bluetooth 5.0	Bluetooth 5.0
App	Zepp Life (Mi Fit)	Huawei Health	Yunmai App	Renpho Health
Display	White LED (hidden under glass)	White LED	White LED	White LED
Max Weight	150kg (330lb)	180kg	180kg	180kg
Accuracy	±50g (weight), BIA ±2% (typical)	±100g	±50g	±100g
Battery	4×AAA (12 months)	4×AAA	3×AAA	2×AAA
JD Rating	4.4/5	4.4/5	4.4/5	4.3/5
JD Reviews	300,000+	100,000+	80,000+	50,000+

Design and Build Quality

The Body Fat Scale is visually identical to the Body Scale 2 — the same white tempered glass surface with hidden LED display. The difference is under the glass: ITO (Indium Tin Oxide) coating that acts as the BIA electrodes.

The glass surface is slightly textured where your feet contact the electrodes. The scale is 25mm thick with the same minimal footprint. Four rubber feet provide stability on hard floors.

The build quality is excellent for ¥109. The glass is 6mm tempered safety glass rated for 150kg. There’s no creaking or flex when stepping on the scale.

“The scale looks identical to my ¥79 weight-only scale from the same brand. The only visual difference is the electrode contact areas on the glass surface. The app shows the additional metrics automatically when it detects BIA signal. For ¥30 more, the upgrade is a no-brainer if you care about body composition.” — JD.com user, verified purchase

Performance

The BIA system sends a weak, imperceptible electrical signal through your body when you step on the scale. The impedance measurement is used to estimate body composition. The accuracy depends on consistent conditions: same time of day, same hydration level, same foot placement, bare feet on the electrodes.

In practice, the BIA readings are consistent (±2% for body fat) when measured under the same conditions. Day-to-day comparisons are useful for tracking trends — the absolute numbers may not match a DEXA scan, but the trend direction is reliable.

The 10 measured metrics are: weight, BMI, body fat percentage, muscle mass, bone mass, body water percentage, basal metabolic rate, visceral fat level, protein level, and body age.

“I use this scale daily and track trends in the Zepp Life app. The body fat percentage reading is within 2% of my gym’s InBody machine — good enough for home use. The visceral fat reading is useful for monitoring health risks. The ‘body age’ feature is a nice motivational tool — mine went from ‘53 years old’ to ‘45’ after 6 months of exercise.” — JD.com user

User Reviews by Theme

Trend Tracking Value

“The absolute body fat percentage may not be perfectly accurate — it shows 2-3% higher than my DEXA scan. But the trending is very consistent. Over 8 months, I can see my body fat going down, muscle mass going up, and body age decreasing. For trend tracking, it’s excellent.” — SMZDM user

💡 Summary: Absolute values may differ from medical equipment, but trend tracking is reliable and consistent.

Multi-User Recognition

“The user recognition works well for our family of 4. It correctly identifies me, my wife, and our two teenage children by weight pattern. The app shows individual progress for each person. The recognition works about 90% of the time — occasionally it attributes to the wrong person, but reassignment is easy.” — JD.com user

💡 Summary: User recognition is good for families with distinct weights. Manual correction is easy when needed.

BIA Consistency

“I’ve noticed that my body fat reading varies by up to 2% depending on hydration. After drinking a lot of water, the reading says lower body fat. In the morning after waking up (dehydrated), it’s higher. For consistent readings, always measure at the same time of day with similar hydration.” — JD.com user

💡 Summary: BIA readings are affected by hydration status. Consistent measurement conditions are essential for accurate trends.

Dry Feet Issues

“The electrode surface doesn’t work reliably if my feet are very dry. Sometimes I step on and it doesn’t show body fat — just weight. I’ve learned to slightly moisten my feet before stepping on. This seems to be a common issue with ITO-coated electrodes.” — JD.com user

💡 Summary: Very dry feet can cause BIA reading failures. Moisturizing feet slightly before use resolves the issue.

Value vs. Basic Scale

“The ¥30 premium over the basic scale is the best ¥30 I’ve spent. Body fat percentage is a much better health indicator than weight alone. My weight has stayed the same for months but my body fat has dropped from 22% to 18% — the basic scale would show zero progress. Highly recommend spending the extra ¥30.” — JD.com user

💡 Summary: The ¥30 premium for body composition metrics is excellent value. Body fat percentage provides meaningful health insights beyond weight.

Purchase Recommendations

✅ Worth Buying (¥109)

The best value body composition scale under ¥150. The ¥30 premium over the basic scale is absolutely worth it for body fat percentage and other health metrics. Essential for anyone tracking fitness progress beyond just weight.

✅ Perfect for Fitness Tracking

If you’re on a fitness journey, this scale provides the metrics needed to track progress: body fat percentage trends, muscle mass changes, and visceral fat reduction. The Zepp Life app integrates with most fitness platforms.

⚠️ Alternative: Huawei Scale 3 (¥129)

Choose Huawei if you’re in the Huawei Health ecosystem. The Wi-Fi connectivity (automatic sync without phone nearby) is a genuine convenience advantage over Xiaomi’s Bluetooth-only approach.

Pros & Cons

✅ Pros	❌ Cons
Excellent value at ¥109	BIA readings affected by hydration
10+ body composition metrics	Dry feet can prevent BIA measurement
Automatic user recognition (up to 10)	Max weight 150kg — not suitable for all
Seamless Zepp Life app integration	Bluetooth-only — phone must be nearby
Same sleek design as ¥79 basic scale	Visceral fat and protein are estimates
300,000+ reviews — proven reliability	No Wi-Fi for automatic cloud sync

FAQ

Q: How accurate is the body fat measurement compared to DEXA? A: The BIA method typically shows 2-4% difference from DEXA (gold standard). The Xiaomi scale tends to read slightly higher body fat than DEXA. For home use, the accuracy is sufficient for trend tracking. The key is consistent measurement conditions rather than absolute accuracy.

Q: Why does my body fat reading change throughout the day? A: BIA readings are sensitive to: hydration (water affects impedance), food consumption, exercise (sweat changes skin conductivity), and time of day. For consistent readings, measure at the same time — ideally in the morning, after using the bathroom, before eating or drinking.

Q: How does the scale measure visceral fat? A: Visceral fat is estimated using BIA combined with the user’s age, height, weight, and body fat percentage. The algorithm estimates the amount of fat stored around internal organs. It’s not as accurate as a CT or MRI scan but provides a useful health risk indicator.

Q: Can the scale be used by multiple people? A: Yes, up to 10 users with automatic recognition. Each user’s profile (height, age, gender) is stored in the app. The scale identifies users by weight pattern. For best results, step onto the scale without shoes and wait for the display to confirm your user number before stepping off.

Q: Is the scale compatible with Apple Health or Google Fit? A: Yes. The Zepp Life app syncs with Apple Health, Google Fit, and Samsung Health. Data from the scale (weight, body fat, muscle mass, etc.) appears in your health app of choice within seconds of syncing.