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If your Withings Body Scan is not sending measurements to your account, first check whether it was set up for Wi-Fi or Bluetooth: each connection type has different troubleshooting steps. Before changing the connection, confirm the scale is registered in the Withings App, check for unassigned measurements, and inspect its battery level.
Start with the checks that apply to either connection
- Confirm the scale is in the app. Open the Withings App and go to Devices. Check whether Body Scan is listed. If it is missing, add and install it again using the setup steps below. Withings’ no-data troubleshooting guide recommends checking device registration before assuming the scale has failed.
- Look for measurements that were not assigned. Check the app menu for unassigned measurements. If a reading appears there, assign it to the correct account rather than troubleshooting the connection.
- Check the battery. A low battery can affect connectivity. Charge the scale if its battery is low, then try syncing again.
- Identify the connection used during setup. If you are unsure, review the scale’s setup in the app. The Wi-Fi and Bluetooth checks below are different.
Fix Wi-Fi syncing problems
Wi-Fi is the preferred setup when a working network is available near the scale. Withings says it recommends Wi-Fi “for usability and synchronization purposes” in its Body Scan installation instructions.
- Check the network. Confirm that Wi-Fi is working for other devices and that Body Scan is close enough to the router. Move the scale closer temporarily to test whether signal range is the problem. If needed, restart the router and try again.
- Update the scale’s Wi-Fi settings after a network change. If you replaced the router, changed internet providers, or changed the network name or password, open Devices, select Body Scan, and open the scale settings. Choose Update Wi-Fi Configuration, then follow the prompts to select a network and enter its details. See Withings’ Wi-Fi configuration instructions.
- Try a sync again. After confirming the network or updating its configuration, return the scale to its usual location and check whether a new measurement reaches your account.
Fix Bluetooth syncing problems
Bluetooth syncing depends on the mobile device paired with the scale. Withings says Body Scan communicates with the last device it paired with, so a different phone may not receive the readings even if it is nearby.
- Bring the phone used to set up Body Scan close to the scale and open the Withings App.
- Check that the app is open on the phone that was paired with the scale. If several phones have been used, the last paired phone may be the one Body Scan is trying to reach.
- Check the scale’s battery and charge it if low; Withings notes that low battery can temporarily affect Bluetooth connectivity.
- Keep the scale software up to date.
What to do when the scale shows “Synchronization issue”
Withings defines the on-scale “Synchronization issue” message as a failure to sync with the app. For a Wi-Fi setup, confirm the network works, move the scale closer to the router, and update its Wi-Fi configuration if the network name or password changed. For a Bluetooth setup, bring the last-paired phone nearby with the Withings App open. Also check the battery, since low charge can temporarily affect Bluetooth connectivity. These checks follow Withings’ scale error guidance.
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#1 Best Overall
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Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Repeat setup or pairing if needed
If the scale is missing from Devices or the existing connection cannot be restored, Withings’ installation flow lets you pair it again. Before starting, have the Wi-Fi password ready if you plan to use Wi-Fi, turn on Bluetooth on your phone, and allow the Withings App to access location.
- In the Withings App, add a scale and select Body Scan.
- Hold the scale’s pairing button for at least three seconds. It should display a QR code and “Open Withings App.”
- Wait for the app to detect the scale; detection can take up to a minute.
- Pair in the app using the six-digit code shown on the scale.
- Follow the prompts to connect to Wi-Fi, or choose the Bluetooth-only option if Wi-Fi is unavailable.
Withings permits Bluetooth-only setup when Wi-Fi is unavailable, but cautions that the scale loses most of its functionality in that mode. Its installation instructions recommend Wi-Fi for usability and synchronization.
Rank #2
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Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
When to contact Withings support
If the scale is registered, its battery is charged, and the relevant Wi-Fi or Bluetooth steps do not restore syncing, contact Withings Customer Service through the Contact us option in the applicable sync troubleshooting article or error guidance. A connectivity problem is not, by itself, a reason to replace the scale; get support before considering replacement.
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Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Rank #3
Sale
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
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