![](https://play-lh.googleusercontent.com/a-/ALV-UjW9H1cbqlz3TMkMKp-iwqpQDyKHdaGbmbQGmuHHSrmzxJlrOzdtOw=s32)
Keeley Daye
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It's awesome when it works but position detection is hit or miss. It's very frustrating to get a low brushing score when the app isn't recognizing that you did hit all areas. There's no work around for it, you just have to take the hit. Sometimes it starts as an unguided session, no rhyme or reason for that & if you back out to get the guided session to pop up it dings you. The toothbrush is too expensive for the app not to work as it should. Edit suggestion doesn't help
1 person found this review helpful
P&G Health Care
July 24, 2024
Keeley, we’re sorry to hear your brush isn't tracking well. To help improve position detection, start with the outside surfaces of the teeth and move from one tooth to the next, letting the brush sit against each tooth briefly, and then repeat this with the chewing and inside surfaces. So we can offer more help, please call us at (800) 566-7252.
![](https://play-lh.googleusercontent.com/a/ACg8ocKSsV73OKur0WvxGittUoO-icSuHumQnPd_62SRUgykxdZjkA=s32-mo)
rogers UCI
I left an iO4 brush unused for a few months, and now it flat-out cannot reconnect to the phone app (using the in-app pairing function), even after removing the device from the app and repeatedly enabling/disabling Bluetooth on the brush. "Luckily" the brush retained my settings and stays in Gentle mode, with the other modes now inaccessible. Incidentally, the app can only remember one paired brush. I had left the iO4 as the paired one, intending to revisit it, but it was all for naught.
P&G Health Care
July 9, 2024
We're sorry that you've had troubles connecting your brush to our app consistently, and would like to help. We recommend that your Bluetooth is turned on, and that your phone is not in power-saving mode. Also, disconnect any other devices connected to your phone via Bluetooth. So that we can help you further, please call us at (800) 566-7252.
![](https://play-lh.googleusercontent.com/a/ACg8ocLemuTcgW1sCv9hXpmnklJIfefhCMRKCn2UYubeAB_u1b5Vrw=s32-mo)
Chuck Renaud
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7/24 update: Way to not read my review, guys. I literally followed those steps and it does NOT connect. I'm not an idiot. Original: Won't connect. I don't have power-saving enabled, I don't have any other BT devices connected, and I can clearly see my toothbrush if I look at my Android Bluetooth device list. The wife's Sonicare connects flawlessly every single time. Lost a customer!
2 people found this review helpful
P&G Health Care
July 24, 2024
Chuck, we're sorry you've had troubles connecting your brush, and would like to help. To begin, turn your Bluetooth on, remove your toothbrush from the charger, and open the app. Follow the in-app instructions, and a message will appear that the devices are paired. So that we can help further, please call us at (800) 566-7252.