Got a bevy of power-hungry phones and tablets in your car? Keep ’em charged with this handy (and discounted!) gadget. Other deals this Friday include a bathroom scale that connects to your iPhone, plus an accessory that’ll add more USB ports to your Mac or PC.

1byone Bluetooth Body Fat Scale

$27.99 on Amazon (normally $32)

Track your weight goals on your iPhone or Android phone with help from this smart Bluetooth scale by 1byone. Capable of tracking weight profiles for up to 10 different people, the Bluetooth Body Fat Scale measures body weight, fat, water, muscle mass, BMI (body mass index) and more, then wirelessly transmits your results to a free smartphone app.

Sabrent 4-Port USB 3.0 Hub

$7.64 on Amazon (limited-time lightning deal, normally $9)

Here’s an easy way to add a quartet of speedy USB ports to your Mac or PC. Boasting a total of four powered USB 3.0 ports, the Sabrent 4-Port USB 3.0 Hub plugs into any USB port on your desktop or laptop, perfect for connecting peripherals ranging from a keyboard or a mouse to an external hard drive or a printer.

RAVPower Quick Charge 3.0 54W 4-Port Car Charger

$11.99 on Amazon (normally $15)

No need to fight over who gets to charge their iPhone in the car. The RavPower Quick Charge 3.0 Car Charger boasts four fast-charging USB ports, and it’s capable of charging four devices at once, including iPhones, Android phones, and iPads. Just plug the charger into your car’s cigarette lighter and you’re ready to start charging.

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