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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

Renpho Elis 1 Smart Body Scale

Elis 1 (ES-CS20M by Renpho's part number), three AAA batteries included

$24.99US price, checked Oct 23, 2026

Basic Bluetooth smart scale with 13 body metrics in a free app, $24.99

Check price at Renpho Full review →

Criterion	Withings Body Scan	Renpho Elis 1 Smart Body Scale
US price	$499.95Checked Oct 23, 2026 · Price details in the review	$24.99Checked Oct 23, 2026 · Price details in the review
Three-year ownership estimate	$499.95 Incomplete known subtotal. Not included: energy use.	$24.99 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 low-cost scale that records weight trends and sends body readings to a free app.
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 reads through the feet only, Renpho gives no body-fat accuracy figure, and only weight shows on the scale.
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 through 4 electrodes in the platform. Renpho says current runs up through one foot, into the lower body and down the other foot, and the upper body is estimated with algorithms. The app shows 13 metrics: weight, BMI, body fat %, body water %, skeletal muscle, fat-free body weight, muscle mass, bone mass, protein, basal metabolic rate, subcutaneous fat, visceral fat and metabolic age. Renpho doesn't state the frequency Weighing: 6.6 to 400 lb (3 to 180 kg) in 0.1 lb (0.05 kg) steps. Units: lb and kg. Renpho's manual page lists the ES-CS20M among its models. It gives weight accuracy of ±0.3 kg at 50 kg, ±0.4 kg at 100 kg and ±0.5 kg at 150 kg Display: LED display. Renpho lists weight as the one body metric shown on the scale; the other 12 are in the app Users and ages: Unlimited profiles in the app, with automatic user recognition. The manual page says children under 10 and adults over 70 get weighing only, while Renpho's collection FAQ says children under 8 Connectivity and app: Bluetooth, version 5 per the manual page. Works only with the Renpho Health app, which the App Store lists as requiring iOS 15.1 or later. The App Store also lists Apple Watch. Syncs with Apple Health, Fitbit, Samsung Health and MyFitnessPal Battery: Three AAA batteries, included. Renpho gives a battery life of up to 4.5 months Use guidance: Bare feet on the electrodes, a hard flat surface, and weighing at the same time each day. The scale switches off after 10 seconds. Renpho says to recalibrate it if it has been moved or turned upside down In the box: Elis 1 Smart Body Scale, three AAA batteries and a manual
Exact variant	Body Scan with retractable handle, black (also sold in white), Wi-Fi and Bluetooth, rechargeable	Elis 1 (ES-CS20M by Renpho's part number), three 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.	The scale's size and weight are unknown. Renpho's product page lists only a 400 lb capacity.
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. The three AAA batteries are included. Put the scale on a hard, flat floor, since Renpho says carpet causes inaccurate readings. Download the free Renpho Health app, create an account or use guest mode, and pair the scale over Bluetooth while standing on it with bare feet.
Materials	High-strength tempered glass platform, per Withings. The handle and frame materials are not stated by the manufacturer.	Glass, per Renpho's product page. Renpho's manual page, which covers several scale models, lists tempered glass with HIPS plastic.
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.	18 months from the original retail purchase for buyers in the US and Canada, per Renpho's warranty terms. They apply to scales bought on Renpho's own site, and other sales channels may differ. The product page also says 18 months, but Renpho's manual page still says one year. Renpho repairs, replaces or refunds at its choice. Batteries made to diminish over time, cosmetic damage, accidents, liquid contact and unauthorized service aren't covered.
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 delivery, per Renpho's shipping and returns page. If you return the scale for a personal reason, it must be unused and in its original packaging. You pay return shipping, and Renpho charges no restocking fee. If it arrives damaged or defective within 30 days, Renpho pays return shipping and gives a full refund or a free replacement. Contact support first, and Renpho then sends a prepaid label.
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	Accuracy of the scale's body composition readings: Renpho gives no figure, and no study naming the Elis 1 was found Which RENPHO scale the 2023 study tested The impedance frequency Which age limit applies to body readings: the manual page says under 10 and over 70 get weighing only, and the collection FAQ says under 8 Whether the warranty is 18 months, as the warranty terms and product page say, or the one year in the manual page Shipping cost for a single scale, and how return shipping is charged for a personal-reason return What replacement AAA batteries cost, since Renpho doesn't price them Whether the app has any optional paid feature, since Renpho calls it completely free The scale's size and weight

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.