If you are still using 10,000 steps daily as your fitness gauge, 2026 is the time to swap this generic approach for something that will help you get real results. Bioelectrical Impedance Analysis (BIA) measures body composition — body fat percentage, skeletal muscle mass and body water — directly from your body, so you can see at any time whether your fitness plan is working. Advanced weighing scales use BIA and so do some of the best smartwatches. This is our guide to the best smartwatches with body analysis in Singapore.
From our tests, the Samsung Galaxy Watch Ultra (2025) is the best smartwatch with BIA. Samsung dominates this category, with the Galaxy 8 Classic and Galaxy 8 also making the list. The ASUS VivoWatch 6, Amazfit Balance and Xiaomi Watch 2 Pro also make the cut.
It is a common misconception that the Apple Watch (Series 11 or Ultra 3) can measure body composition. Unfortunately, every Apple Watch still currently lacks a built-in BIA sensor. If you are an iPhone user in Singapore and want this feature, you must either buy a third-party band accessory such as the AURA Strap 2, or use a Smart Scale from brands such as Withings or Garmin that syncs data to Apple Health.
If you are set on getting a smartwatch with body analysis functions, Amazfit watches with BIA will connect to your iPhone.
1. Samsung Galaxy Watch Ultra (2024 & 2025)
The pinnacle of rugged health tech in 2026, the Ultra features a new 3nm processor and the upgraded BioActive Sensor for highly precise body composition and “Energy Score” metrics.
This is the BIA smartwatch I have been using myself for the past 2 years. Over that time, I have found that it is a relentlessly accurate. It literally shows an increase in body fat the very next morning after I decide to cheat on my diet. If you want to monitor your body composition accurately and also have one of the most advanced smartwatches every made on your wrist, the Samsung Galaxy watch Ultra gets my highest recommendation.
- Released: 24 July 2024/25 July 2025
- Display: 1.5 in. Super AMOLED
- Resolution: 480 x 480 pixels (~453 ppi)
- Protection: Sapphire crystal
- Frame: Titanium (Grade 4)
- Dimensions: 47.1 x 47.4 x 12.1 mm
- Weight: 60.5 g
- Resistance: 100m water resistant (10ATM), IP68, MIL-STD-810H
- Memory: 32GB, 2GB RAM (2024); 64GB, 2GB RAM (2025)
- Battery: 590 mAh
- Charging: 10W wireless
Buy now from S$658 on Samsung  Amazon Decathlon Shopee
2. Samsung Galaxy Watch 8 Classic
Launched in mid-2025, the Watch 8 Classic brought back the fan-favourite rotating bezel which serves as a highly stable electrode for BIA scans.
Credit – Samsung
- Released: 25 July 2025
- Display: 1.5 in. Super AMOLED
- Resolution: 438 x 438 pixels (~453 ppi)
- Protection: Sapphire crystal
- Frame: Stainless steel
- Dimensions: 46.0 x 46.4 x 10.6 mm
- Weight: 63.5 g
- Resistance: 50m water resistant (5ATM), IP68
- Memory: 64GB; 2GB RAM
- Battery: 445 mAh
- Charging: 10W wireless
Buy now from S$488 on Samsung  Amazon Decathlon Shopee
3. Samsung Galaxy Watch 8
The standard flagship for 2026, offering the fastest BIA processing speeds and the new “Antioxidant Index” alongside body fat and muscle tracking. It’s super slim profile somehow packs in BIA sensors.
Credit – Samsung
- Released: 25 July 2025
- Display: 1.5 in. Super AMOLED (44mm); 1.3 in. Super AMOLED (40mm)
- Resolution: 480 x 480 pixels (44mm); 432 x 432 pixels (40mm)
- Protection: Sapphire crystal
- Frame: Armour Aluminium
- Dimensions: 44.4 x 44.4 x 9.7 mm (44mm); 40.4 x 40.4 x 9.7 mm (40mm)
- Weight: 34 g (44mm); 30 g (40mm)
- Resistance: 50m water resistant (IP68)
- Memory: 32GB; 2GB RAM
- Battery: 435 mAh (44mm); 325 mAh (40mm)
- Charging: 10W wireless
Buy now from S$371 on Samsung  Amazon Decathlon Shopee
4. ASUS VivoWatch 6
ASUS offers a unique fingertip-based BIA sensor on the side of the watch, which users often find more intuitive than the button-based method on other brands.
- Released: 2 Sep 2024
- Display: 1.39 in. AMOLED
- Resolution: 454 x 454 pixels (~326 ppi)
- Protection: Gorilla Glass
- Frame: Stainless steel
- Dimensions: 46.7 x 46.7 x 12 mm
- Weight: 60 g
- Resistance: 50m water resistant (5ATM)
- Memory: 16GB; 1GB RAM
- Battery: 290 mAh (14-day life in power-save)
- Charging: Magnetic charging
Buy now from S$569 on SHOPEE Lazada
5. Amazfit Balance
The 2025 update to the popular Balance series features the BioTracker 6.0 and a dedicated BIA Bioelectric Impedance Sensor for 24/7 metabolic tracking. Please note that the updated Amazfit Balance 2 removed BIA functionality.
- Released: 1 Sep 2023
- Display: 1.5 in. AMOLED
- Resolution: 480 x 480 pixels (~323 ppi)
- Protection: Tempered glass (Anti-glare bezel)
- Frame: Aluminium alloy
- Dimensions: 46 x 46 x 10.6 mm
- Weight: 35 g
- Resistance: 50m water resistant (5ATM)
- Memory: 2GB
- Battery: 475 mAh
- Charging: Magnetic charging
Buy now from S$220 on  Amazon Decathlon Shopee Lazada
6. Xiaomi Watch 2 Pro
The Xiaomi Watch 2 Pro is a high-performance Wear OS device that features a dedicated BIA sensor. By placing two fingers on the side buttons, users in Singapore can get a comprehensive analysis of body fat, water content, and muscle mass.
- Released: 03 Oct 2023
- Display: 1.43 in. AMOLED
- Resolution: 466 x 466 pixels (~326 ppi)
- Protection: Corning Gorilla Glass
- Frame: Stainless steel
- Dimensions:6 x 45.9 x 11.8 mm
- Weight: 60.5 g (without strap)
- Resistance: 50m water resistant (5ATM)
- Memory: 32GB; 2GB RAM
- Battery: 495 mAh
- Charging: Magnetic charging (100% in ~45 mins)
Buy now from S$239 on Xiaomi  Amazon Shopee Lazada
FAQ
Which smartwatches measure body composition in Singapore?
In 2026, the best smartwatches with built-in Bioelectrical Impedance Analysis (BIA) are the Samsung Galaxy Watch Ultra, Samsung Galaxy Watch 8 series, ASUS VivoWatch 6, and Amazfit Balance 2. These devices allow users to track skeletal muscle mass, body fat percentage, and basal metabolic rate (BMR) directly from the wrist.
Does the Apple Watch Series 11 have body composition sensors?
No, neither the Apple Watch Series 11 and Ultra 3 feature built-in BIA sensors. Apple users in Singapore must use a third-party accessory like the AURA Strap 2 to track these metrics.
Are smartwatch body fat measurements accurate?
Smartwatch BIA sensors are optimised for tracking trends rather than absolute medical accuracy. While they show a strong correlation with DEXA (also known as DXA) scans, factors like hydration and wrist placement can influence individual results.
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