Banggood.com has SOOCAS X3/X3U Electric Sonic Toothbrush Smart Control 4 Brushing Mode Ultrasonic Whitening Teeth Vibrator Wireless Oral Hygiene - Pink X3 on sale £26.66 after use promo code: BGCZX3Pro at checkout. Thanks
Features:

4 cleaning modes, clean, sensitive, gumcare, whitening.
Smart APP control, bluetooth connection.
Built-in 1000mAh lithium-ion battery, charging time about 16 hours, the usage time is about 25 days.
The whole body is IPX7 waterproof level.
Smooth and comfortable hand feeling, this electric toothbrush also gives you the sense of beauty .
With various product certification qualifications, FCC, CE, FDA, and IPX7 waterproof.

Different between X3 & X3U :

1 X3 can be use with APP and X3U dont use with APP
（Consider the instability of the application）
2 X3 charging by charging base and X3U charging by Type-C data cable
3 All other function parameters are the same

Package Contents:

1 x Soocas X3/X3U Electric Toothbrush
1 x Toothbrush Head
1 x Wireless Charging Cable/Charging Base
1 x User Manual