Currently using Oclean Z1 ( bluetooth) and it's the best toothbrush I've ever had. Teeth feel clean all day and using the app we have a bit of fun seeing who is the most efficient brusher . Had both Philips Sonicare and Oral B. Also use a Fairywill for our travel brushes as the are so light , good but not as good as the Oclean.
Mine failed after 3 years - ended up getting the Xiaomi t500 toothbrush as it's only £30 - been very impressed with it, even has the ability to connect to your phone and alter the settings etc. Only had it for approx 3 months, but it came with 4 heads so I thought £30 even if it only lasts a year doesn't sound too bad) - hopefully last much longer though :)
Just so you know the warranty period on the Sonicare is 2 years. My first one failed at 23 months. Was hassle free to have it swapped over. I've had the replacement for about 3 years and it is still going strong. I would suggest you just claim on the warranty. For balance with the post above, I used to use Oral B and much prefer the way the Sonicare cleans! When this one fails if I've had 5-6 years out of it I will feel it has been fairly good value for money and buy another!
Oral b, anything above the 2500 model, I didn't like the sonicare myself, just didn't feel like it cleaned them thoroughly.