Unique CF661 Slim 8-Electrode Body Composition Scale

✓ Free shipping Australia-wide  ·  ✓ 14-day home trial  ·  ✓ 12-month warranty

The Unique CF661 is the slim, compact sibling of the CF669 — same 8-electrode body composition technology, same 57-metric measurement, but in a 30 × 30 cm square form factor with a 31.5 mm slim profile and a colour LED display. Designed for tight bathrooms, modern interiors, or anywhere the rectangular CF669 wouldn't fit cleanly.

14 day home trial. Try it at home. If it's not for you, return it within 14 days of delivery in like new condition with everything in the box and we'll refund the purchase price. See our returns policy.

Key Features

• 57 body composition metrics — body weight, body fat %, muscle mass, BMI, visceral fat, body water, protein, bone mass, BMR, and more.
• 8-electrode bioelectrical impedance — readings through both feet and both hands for higher accuracy than foot-only scales.
• ≥98% body fat correlation vs INBODY 270.
• 3.86-inch LED colour screen — visual differentiation between metric categories at a glance.
• WiFi and Bluetooth — Unique Health app sync.
• 180 kg / 400 lb capacity, 0.05 kg / 0.1 lb division.
• Slim 31.5 mm profile — sits flat against the wall when stored on edge.
• Square 300 × 300 mm form — compact enough for small bathrooms.
• 50-member family management.
• Baby Hold Mode.
• 500 mAh lithium battery, 90 days battery life.
• 5 mm tempered glass platform with ITO coating.

See everything in the free Unique Health app

The scale shows your weight on its display. The full picture lives in the free Unique Health app for iPhone and Android. Step on, and in about 20 seconds the scale sends a complete body report to your phone over Bluetooth or WiFi.

• All 57 metrics in one report, body fat, muscle mass, visceral fat, body water, protein, bone mass, BMR and more
• Trend charts, see how each number moves over weeks and months, which is where the real progress shows
• Side by side comparison, pick any two measurements and compare them
• Whole family, every person gets their own profile and history, and family members can share data through the app
• Apple Health, weight, BMI and body fat can sync to Apple Health once you allow it
• Free to download on the App Store and Google Play

Specifications

• Dimensions: 300 × 300 × 31.5 mm
• Capacity: 180 kg (400 lb)
• Division: 0.05 kg (0.1 lb)
• Display: 3.86" LED colour screen
• Connectivity: Bluetooth 5.0 + WiFi
• Battery: 500 mAh lithium, 90-day life
• Platform: 5 mm tempered glass with ITO coating
• App: Unique Health (iOS / Android)
• Member profiles: Up to 50
• Warranty: 12 months

Who it's for

Households with limited bathroom space, modern interior aesthetics, or anyone preferring a square form factor. Same accuracy and feature set as the CF669 — choose by size and aesthetics. The colour display is also a small but real upgrade for users who like visual feedback (different colours for different metric categories).

What's in the box

• Unique CF661 slim body composition scale
• USB charging cable
• User manual
• App download instructions

Compare the Range

Not sure if the CF661 Slim is the right fit? See how it compares to the rest of the Unique range:

• CF669 ($229) — identical accuracy and features in the standard rectangular form factor with a slightly larger footprint.
• CM0001 Standing ($1,499) — the premium step up for home gyms and wellness setups. 7-inch touchscreen at eye level, 200 kg capacity, built for daily long-term use.

Read our full body composition scale buying guide to understand the metrics and choose with confidence, or see how a home scale compares to a DEXA scan.

Frequently Asked Questions

Can I return it if it's not for me?
Yes. You get a 14 day home trial. Return it within 14 days of delivery in like new condition with all parts and packaging, and we'll refund the purchase price. Return postage is paid by you. Full details in our returns policy.

CF661 vs CF669 — which should I choose?
Functionally identical for body composition measurement. Choose by size: CF661 is square 30 × 30 cm with a slim 31.5 mm profile (fits tighter spaces). CF669 is rectangular 33 × 30 cm with a 46.5 mm profile (more presence in the room). The CF661 also has a colour display where the CF669 has a standard LED.

How accurate is body composition measurement?
The 8-electrode design is significantly more accurate than typical 4-electrode consumer scales. Manufacturer reports ≥98% body fat correlation with INBODY 270 (clinical reference). For best results, weigh yourself at the same time of day, on an empty stomach, with empty bladder.

Does it sync with Apple Health or Google Fit?
The scale syncs to the free Unique Health app. The app can pass weight, BMI and body fat to Apple Health once you give permission in the app. For other platforms, check the app's settings after pairing.