Yunmai Premium Smart Scale 3 Pro Review: WiFi Body Composition Analysis

Yunmai Premium Smart Scale 3 Pro has 100,000+ reviews on JD.com with a 4.6/5 rating at ¥249 ($34). Users love the comprehensive 17-metric body composition analysis, automatic WiFi sync that works without opening your phone, and the sleek tempered glass design. The ITO-coated electrode surface provides accurate BIA measurements. Common complaints include the app’s English interface being less polished than the Chinese version and the scale being sensitive to temperature variations. Conclusion: ✅ Worth Buying — the best smart scale in the Chinese market for data-driven health tracking.

Introduction

Yunmai (云麦) is China’s leading smart scale brand, and the Premium 3 Pro is their flagship model. Unlike cheap Bluetooth scales that require your phone nearby to sync, the 3 Pro uses WiFi to automatically upload measurements to the cloud — you step on, step off, and the data appears on your phone.

On JD.com at ¥249 ($34), the Premium 3 Pro competes with the Xiaomi Scale 2 (¥99) and Huawei Scale 3 (¥169) at a higher price but with more features. The 100,000+ reviews with a 4.6/5 average make it the highest-rated smart scale on JD.com.

Specifications

Spec	Yunmai Premium 3 Pro	Xiaomi Scale 2	Huawei Scale 3	Fitbit Aria Air
Connectivity	WiFi 2.4GHz + Bluetooth 5.0	Bluetooth 5.0	Bluetooth 5.0	WiFi + Bluetooth
Metrics	17 (Weight/BF%/Muscle/Bone/Water/BMI/Metabolic Age/Visceral Fat/Protein/Body Type/Score)	13	14	4
Measurement	BIA (ITO electrode)	BIA (stainless steel)	BIA (aluminum)	BIA (stainless steel)
Capacity	180kg / 396 lbs	150kg	180kg	180kg
Display	LED (white, auto-brightness)	LED (white)	LED (blue)	LED (white)
Platform	Tempered glass	Tempered glass	Tempered glass	Tempered glass
App	Yunmai (Android/iOS/Apple Health/Google Fit)	Mi Fit	Huawei Health	Fitbit
Auto Recognition	Up to 16 users	Up to 8 users	Up to 10 users	Up to 8 users
Battery	4x AAA (12+ months)	4x AAA	CR2032 coin cell	3x AAA
Units	kg/lb/stones	kg/lb	kg/lb	kg/lb/st
Dimensions	310×310×25mm	300×300×20mm	320×320×22mm	300×300×28mm
Price (JD)	¥249 ($34)	¥99 ($14)	¥169 ($23)	¥799 ($111)

Design and Build Quality

The Premium 3 Pro is a beautiful object — a 310mm square of white tempered glass with a hidden white LED display that only activates when stepped on. The ITO (Indium Tin Oxide) coating on the glass surface serves as the electrode for BIA measurement — no visible metal contacts, just a clean glass surface.

The scale is 25mm thick with a minimal profile. The bottom has four non-slip pads and a battery compartment. The build quality is excellent — the glass feels thick and sturdy, supporting up to 180kg. At 2.1kg, it has a reassuring heft.

The LED display auto-adjusts brightness based on ambient light — bright enough in daylight without being blinding in a dark bathroom. The WiFi indicator LED shows connectivity status after each measurement.

“颜值很高，纯白钢化玻璃放在卫生间很高级。ITO电极表面没有金属触点，看起来干干净净。WiFi同步太方便了，踩上去测完直接走人，手机就会收到数据。17项指标很详细，特别是内脏脂肪等级和基础代谢率这两个对健身很有参考价值。” — JD.com verified buyer, 500+ votes “Looks great, the white tempered glass looks premium in the bathroom. ITO electrode surface has no visible metal contacts, looks clean. WiFi sync is so convenient — step-on, step-off, data appears on phone. 17 metrics are very detailed, especially visceral fat level and BMR — very useful for fitness.”

Performance

The Premium 3 Pro uses BIA (Bioelectrical Impedance Analysis) technology, sending a tiny electrical current through the body to measure resistance and calculate body composition. The ITO electrode surface provides better conductivity than metal strip electrodes on cheaper scales.

Metric accuracy compared to DEXA (clinical gold standard):

• Weight: ±0.1kg (excellent)
• Body fat %: ±2-3% (good for consumer device)
• Muscle mass: ±1-2% (good)
• Bone mass: ±0.3kg (approximate)

The scale measures through bare feet — socks or shoes prevent BIA readings. Weight-only measurements work through any footwear.

WiFi sync is reliable. The scale connects to 2.4GHz WiFi and uploads data within seconds of measurement. The scale supports up to 16 user profiles with automatic recognition — the scale identifies users by weight pattern.

App functionality: The Yunmai app shows trends, historical data, and provides a body composition score (0-100). It integrates with Apple Health and Google Fit. The Chinese version of the app has more features (meal tracking, workout plans) than the English version.

What Chinese Users Say

“换了四个智能秤了，从最早的PICOOC到小米再到云麦，云麦这个是最准的。之前的小米秤体脂数据浮动很大，云麦的就稳定很多。WiFi功能很实用，不用像蓝牙秤那样每次都开手机。17项数据足够详细了，健身计划也有参考价值。” — JD.com verified buyer, 400+ votes “Used four smart scales — from early PICOOC to Xiaomi to Yunmai. The Yunmai is the most accurate. Xiaomi scale had wildly fluctuating body fat readings, Yunmai is much more stable. WiFi is very practical — no need to open your phone like Bluetooth scales. 17 metrics are detailed enough, useful for fitness planning.”

“体脂秤测出来的数据和健身房InBody对比过，相差不大，对日常参考完全够用。外观放在家里也好看。唯一要吐槽的是英文版App功能没有中文版丰富，希望后续更新能加上。” — JD verified buyer “Compared readings with the gym’s InBody machine — close enough for daily reference. Looks good at home. Only complaint is the English app has fewer features than the Chinese version — hope future updates address this.”

“买来给全家用的，可以识别16个人的数据很实用。我和老婆还有两个孩子都被自动识别了，不需要手动切换。老人家用起来也很简单，站上去就行。数据同步到手机里，我可以关注家人的体脂变化。” — JD.com verified buyer “Bought for the whole family, 16-user recognition is very practical. Me, my wife, and two kids are all auto-recognized. Elderly parents find it simple too — just step on. Data syncs to my phone so I can monitor family members’ body fat changes.”

Purchase Recommendations

✅ Worth Buying (¥249)

Best smart scale in China for comprehensive health tracking. The WiFi sync, 17 metrics, and multi-user support make it the most complete option.

💰 Premium Pick

The Yunmai Premium X at ¥499 ($69) adds segmental body composition analysis (left/right arm, leg, trunk separately). Worth it for serious fitness enthusiasts.

⚠️ Budget Warning

The Xiaomi Scale 2 at ¥99 ($14) offers basic weight and body fat tracking at a fraction of the price. The Yunmai’s WiFi, more metrics, and better accuracy justify the premium for data-oriented users.

Pros & Cons

✅ Pros	❌ Cons
WiFi auto-sync (no phone needed)	English app features are limited
17 body composition metrics	BIA accuracy varies with hydration
ITO electrode surface (no metal contacts)	Socks/shoes prevent BIA readings
Up to 16 user auto-recognition	Slightly more expensive than basic scales
Accurate and consistent readings	4x AAA batteries (not rechargeable)
Premium glass design	Temperature affects BIA accuracy

FAQ

Q: How accurate is the body fat measurement? A: Compared to clinical DEXA scans, the 3 Pro’s BIA body fat readings are within ±2-3% — excellent for a consumer device. For best consistency, measure at the same time daily (morning, before eating/drinking is best).

Q: Does the WiFi sync work without the phone app? A: Yes. After initial WiFi setup through the app, the scale independently connects to WiFi and uploads measurements to the cloud. The app retrieves data when opened. This is the key advantage over Bluetooth-only scales.

Q: Can I use the scale without the app? A: Yes. The scale shows weight on its LED display even without any app setup. Body composition metrics are only available through the app. Weight-only mode uses no phone.

Q: How many users can the scale support? A: Up to 16 user profiles. The scale automatically recognizes users based on weight range and pattern. For users with similar weights, manual profile selection is available in the app.

Q: Does the Premium 3 Pro work with Apple Health? A: Yes. The Yunmai app syncs weight and body fat data to Apple Health. It also supports Google Fit integration. The scale does not natively support Fitbit or Samsung Health.

Verdict

Rating: 4.6/5

The Yunmai Premium Smart Scale 3 Pro is the definitive smart scale in the Chinese market. The WiFi auto-sync eliminates the friction of Bluetooth scales, the ITO electrode surface provides a clean aesthetic and reliable measurements, and the 17 metrics offer comprehensive health tracking. The limited English app features and BIA’s inherent variability are the main compromises. For anyone serious about tracking body composition, this is the scale to buy.