We’re very sorry to hear this has been your experience with your Oral-B iO Series 5. Our brushes go through many quality checks to ensure they provide a comfortable brushing experience, so we wouldn’t expect to hear this. We will be sure to share your experience with our Quality team. We’d like to learn more from you, and make it right. Please give us a call at 1(800) 566-7252.

We're so sorry to hear your toothbrush was rusting and cracked. Please know, we have many quality checks in place to help ensure only the best products reach you, so your experience isn't something we'd expect. We'd really like to help you further and learn more, so when you have a chance, please give us a call at (800) 566-7252.

We're truly sorry to hear this, Dayan. For your peace of mind, we check the quality of our toothbrushes many times during the manufacturing process so that you receive a good quality brush that will last, although rust can still develop if excessive water is left on it. Rest assured, the rust is not harmful and can be easily cleaned off using a sponge with water. To prevent rust from developing, we advise removing the brush head from the handle after each use and cleaning them separately under running water. Please ensure both parts are dried thoroughly before reassembling to help keep your brush in its best condition. If you need further help, we're happy to assist M-F, 9 AM to 6 PM EST at 1-800-566-7252.

We're sorry to hear about this, Dayan. This certainly isn't what we expect especially since our iO Series 5 is backed by our limited 2-year warranty. It's possible this may be prevented in the future if it's stored in a dry area after use, but we'd like to collect some more details about this and share more about our warranty. Please call us at (800) 566-7252.

We're sorry your brush isn't providing a full week of brushing between charges. We expect our brush to provide approximately 30 minutes of run time when fully charged, and our products go through many quality checks to ensure they perform reliably. We’re sorry if this isn’t the case. We’d like to provide a few troubleshooting tips that may help. Make sure the power outlet you are using is working as it should, and switched on if it is controlled by a power switch. Also, do not charge the toothbrush on a metal surface since the metal can interfere with the charging process. For maximum battery life, we recommend following this routine. (1) Fully charge the handle for the time recommended in the brush manual instructions. (2) Use the brush until it is completely discharged (or close to fully discharged). (3) Repeat. Do not store the brush on the charger after fully charging. We hope this helps you out! If you have need further help or have more questions, our Oral-B Team is standing by. Please give us a call at 1-800-566-7252 from 9AM - 6PM EST Monday - Friday.

There's nothing more important to us than quality and your satisfaction, so be assured that your iO Series 5 should last 4x times longer than just 6 months. This is backed by our limited 2 year warranty. We'd like to help and collect some additional information so we can better assist you, so when you have a moment, please call us at (800) 566-7252.