Amazon.com: Orzero Steps Counter Compatible for Pokemon Go Walker Phone Swing Accessories Cellphone Pedometer (USB Cable) (Easy Installation) (Mute Version) Egg hatcher Rocker Quick Steps Earning Device - Black : Video Games
Here's why you should (or shouldn't) buy the new Pokémon Go Plus accessory
Amazon.com: Phone Swing Step Counter Pedometer Compatible with Pokemon Go Poke Ball Plus Cellphone Accessories with USB Cable High Silent Version for Walking (Support 2 Phones Under 7.2 Inch), Pink : Cell
Phone Shaker Steps Counter Accessories Holder For Pokemon Go Cellphone Pedometer Usb Cable Automatic Shake Pedometer Holder - Holders & Stands - AliExpress
Phone Swing Step Counter Pedometer Compatible with Pokemon Go | eBay
DATEL Pokemon Go Gotcha Wrist Band for Iphone/Android | Fitness tracker, Wristband, Iphone
Pokémon Go adds background step-tracking for enhanced egg hatching