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Smart scale

Withings Body Scan

Body Scan with retractable handle, black (also sold in white), Wi-Fi and Bluetooth, rechargeable

$499.95US price, checked Oct 23, 2026

Smart scale with a handle for five-zone body composition and an ECG, $499.95

Check price at Withings Full review →

Smart scale

Garmin Index S2

Index S2 Smart Scale, black (010-02294-02, also sold in white), Wi-Fi 2.4 GHz, four AAA batteries included

$199.99US price, checked Oct 24, 2026

Wi-Fi smart scale for up to 16 people with foot-to-foot body composition, $199.99

Check price at Garmin Full review →

Criterion	Withings Body Scan	Garmin Index S2
US price	$499.95Checked Oct 23, 2026 · Price details in the review	$199.99Checked Oct 24, 2026 · Price details in the review
Three-year ownership estimate	$499.95 Incomplete known subtotal. Not included: energy use.	$199.99 Incomplete known subtotal. Not included: annual consumables, energy use.
Choose if	You want separate fat and muscle readings for the arms, legs and torso plus an ECG function from one scale.	You want a Wi-Fi scale that syncs weight and body composition to Garmin Connect and can serve up to 16 people.
Main trade-off	It costs $499.95, its DEXA match comes from Withings' own study, and some people must switch off the body composition readings.	It costs $199.99, Garmin publishes no accuracy figure for the body composition readings, and every extra user needs a Garmin Connect account.
Key specifications	Body composition method: Multi-frequency bioelectrical impedance with 8 electrodes in total, since the handle adds to the four under the feet. Withings says the signal runs up to 250 kHz. It reports fat and muscle mass for five body zones. Whole-body readings are body fat %, body water %, muscle mass, bone mass, visceral fat index and basal metabolic rate Weighing: Four weight sensors. Range 9 to 440 lb (5 to 200 kg) in 0.1 lb (50 g) steps. Units: kg, lb and st lb ECG and vascular features: 6-lead ECG recorded over 30 seconds while you stand on the scale and hold the handle. Also vascular age and an electrodermal activity score, which is a US-only wellness metric. Withings says the electrodermal score isn't for diagnosis Users and modes: Recognizes up to 8 users. Athlete, Pregnancy, Baby and Eyes Closed modes. No minimum or maximum foot size Connectivity and app: Wi-Fi 802.11 b/g/n and Bluetooth. Needs the Withings app on iOS 18 or later, or Android 12 or later. Stores up to 16 weigh-ins when it can't sync Battery and charging: Built-in rechargeable lithium-ion battery that Withings says lasts up to 1 year per charge. Charges over the USB-C cable in the box Display: 2.8 in color LCD, 320 x 240 pixels In the box: Body Scan, USB-C cable, quick installation guide (English, French, German, Italian and Spanish), wall handle mount and cable stopper	Body composition method: Bioelectrical impedance. A small current runs from one foot through the body to the other foot, and Garmin lists no handle or hand electrodes. The pages checked give no frequency or electrode count. It reports body mass index, body fat %, body water %, skeletal muscle mass and bone mass, plus a 30-day weight trend. Garmin says bone mass is calculated from your age and lean body mass Weighing: Units: pounds, kilograms or stones and pounds, set with a switch on the underside. Maximum load 400 lb (181.4 kg). The pages checked give no display step or weight tolerance Profile inputs and modes: Uses date of birth, gender, height and activity level from your Garmin Connect profile. An activity class of 8 to 10 turns on Athlete Mode, which Garmin's FAQ names when body fat reads lower than expected. With socks on, the scale records only weight and BMI. A weight-only option turns off the other body composition data Users: Up to 16 people. The person who set up the scale invites up to 15 others in Garmin Connect. Each needs a Garmin Connect account and a connection to that person. Guest data isn't stored or synced. The scale tells users apart by weight and how often each person weighs in, so similar users can be mixed up Connectivity and app: Wi-Fi (2.4 GHz) syncs readings to Garmin Connect, and the scale stores up to seven networks. Garmin's spec also lists Bluetooth LE and ANT. Setup and settings are in the Garmin Connect app. The pages checked give no minimum phone operating system Battery: Four AAA alkaline batteries, included. Garmin says they last up to 9 months and tells you to use 1.5 V cells Display: A high-resolution color display that steps through your readings every few seconds, plus a weather widget that needs Wi-Fi. Garmin doesn't state its size or resolution In the box: Index S2, four AAA batteries, four carpet feet and documentation
Exact variant	Body Scan with retractable handle, black (also sold in white), Wi-Fi and Bluetooth, rechargeable	Index S2 Smart Scale, black (010-02294-02, also sold in white), Wi-Fi 2.4 GHz, four AAA batteries included
Dimensions	The tempered glass platform measures 12.8 x 12.8 x 1.1 in (325 x 325 x 25.6 mm), per Withings' product page. The FDA's 510(k) summary lists the cleared device at 372 x 446 x 45 mm and 4.4 kg, without saying what that figure includes. Withings' product page gives no weight.	12.6 x 12.2 x 1.1 in (320 x 310 x 28 mm) and 4.4 lb (2.0 kg), per the specs tab of Garmin's product page. The maximum load is 400 lb (181.4 kg).
Installation	No installation. You set it up in the Withings app over Wi-Fi or Bluetooth, and it can't be set up from a computer. A wall handle mount and a cable stopper come in the box. In the US, the ECG function needs its own activation. You give your state and a US phone number, and a cardiologist reviews your first ECG at no added cost.	No installation beyond setup. You pair the scale through the Garmin Connect app and connect it to a compatible Wi-Fi router. Garmin says you need both before you can use all its features. Garmin lists a 2.4 GHz Wi-Fi radio. The four AAA batteries are in the box, and so are four carpet feet for carpeted floors. Garmin recommends a hard, flat floor for the most accurate weight.
Materials	High-strength tempered glass platform, per Withings. The handle and frame materials are not stated by the manufacturer.	A glass surface, per Garmin's manual and support FAQ. Garmin says wearing shoes or heels can damage the glass. The product page offers black and white designs. Other materials are not stated by the manufacturer.
Warranty	2-year quality guarantee, per Withings' product page. The US store's terms of sale describe legal warranties under French law and give no US warranty terms.	One year from the date of purchase, per Garmin's Consumer Limited Warranty. The terms, revised Dec 30, 2025, cover Garmin's non-aviation products and don't name the Index S2. Garmin chooses whether to repair it, replace it with a new or Garmin Recertified device, or refund the purchase price. The warranty excludes cosmetic damage, batteries unless a defect damaged the product, and damage from accident, abuse, misuse or water. You pay shipping to Garmin. A repaired or replacement device is covered for 90 days or the rest of the original year, whichever is longer. In the US, it covers only devices bought from Garmin or an authorized US reseller.
Returns	30 days from receipt, per Withings' refund policy. One clause counts the 30 days from receipt and another from the purchase date. You start the return from your Withings account, print the label and send back the product with all its original items. The product page says free shipping and returns, but the policy says you pay return shipping after a withdrawal, so check the label cost first. Refunds go to the original payment method.	30 days from receipt of a Garmin.com order, per Garmin's shipping and returns page. The scale must be in its original condition, and you start the return online with a return request. Garmin says opened software, downloadable items and custom products can't be refunded. The page doesn't say who pays return shipping. Bought from another store, the scale goes back to that store under its own policy, and Garmin says restocking fees may apply.
Unresolved questions	Bias and limits of agreement for Withings' DEXA study, which its pages don't give Whether an independent study has compared the Body Scan's body composition with DEXA (none was found) The terms of Withings' 2-year quality guarantee in the US Whether returns are free, and whether the 30 days count from receipt or purchase, since Withings' pages disagree The scale's weight, which the product page doesn't give Which features besides data export need Withings+, beyond the extras Withings lists (cardiologist ECG review, Health Assistant, NutriCare and Readiness) Charging power draw	Any accuracy figure or DEXA comparison for the Index S2. Garmin gives none on the pages checked, and a Europe PMC search on Oct 24, 2026 found no study that validated it The data behind Garmin's claim that its readings compare favorably with DEXA, since it comes from a forum reply that names no study or figure The frequency, electrodes and equations behind the readings, which Garmin doesn't publish Whether the weight-only option stops the current Whether the limit is 16 people in total or 16 besides the person who set up the scale, since Garmin words it both ways The weight display step, a weight tolerance and the display size and resolution What replacement AAA batteries cost, since Garmin doesn't price them Which phone operating system versions Garmin Connect needs for setup Who pays return shipping on a Garmin.com return

These comparisons use published specifications, not head-to-head tests. Prices and terms are dated. Unknown costs are not zero. Check the exact variant before you buy.