4100 Series

The Philips Soniccare 4100 is great -- and simple. I had a diamond clean before this, but a screw got loose and it wasn't brushing anymore. The heads are the same and there are plenty of great third party ones at a fraction of the cost.

Im using Sonicare 4100. Goods naman lahat ng model nila

Depends on the brand. Sonicare brushes vibrate at a very high rate and do an exceptional job cleaning teeth. Mine always feel borderline professionally cleaned afterwards. 

This is the one I use and would recommend. It has the only features you really need: high vibration speed, a timer so you know you've brushed enough, and a pressure sensor.  My last Sonicare lasted for over five years before I replaced it. They're pretty durable and do a good job. You can buy off brand replacement heads, too, if you want. I spend the extra on the name brand ones since they do such a good job, though. 

Similar to my own experience. I had some deep pockets that actually improved since getting the Sonicare. They're not perfect, mind you, but they're better. 

This. I got mine 4 months ago and somehow still haven’t needed to change the head as per their recommendation, which they never made. 4100, and I only charged it like 6 times MAX if even.

Will do. I have a nice hard shell carry case for it as I travel at least once a year - and so far so good

Former Colgate hum user here. I switched to Philips sonicare and been happy with it. My biggest concern was the size of the brush head but the standard C2 head is working well for me. But I don't have noise sensitivity, so not sure if you'd find sonicare loud or not. I use it in sensitive mode. The regular mode is too strong for me. 4100 model is currently $39.99 on Amazon. Ymmv.