Easy and stylish charging - home and away. Brush heads automatically select the optimal settings. Guides you to reduce your scrubbing. Alerts you if you're pressing too hard. Start taking better care of your trouble areas. Make sure you're getting the most from your brush head. Takes you back to any missed spots for 100% coverage. Guides you to brush and highlights missed areas. Choose from 4 modes and 3 intensity settings. Removes up to 10x more plaque for a deep clean.
Easy and stylish charging - home and away. Brush heads automatically select the optimal settings. Guides you to reduce your scrubbing. Alerts you if you're pressing too hard. Start taking better care of your trouble areas. Make sure you're getting the most from your brush head. Takes you back to any missed spots for 100% coverage. Guides you to brush and highlights missed areas. Choose from 4 modes and 3 intensity settings. Removes up to 10x more plaque for a deep clean.
in 3 offers
The lowest price for Philips HX9917/88 Sonic Electric Toothbrush with App right now is $366.11 at Amazon.com.au, compared across 3 retailers.
The all-time low was $263.03 on 26 Aug 2026 — today's price is 39% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 10 Sept 2026.
Philips HX9917/88 Sonic Electric Toothbrush with App
Easy and stylish charging - home and away. Brush heads automatically select the optimal settings. Guides you to reduce your scrubbing. Alerts you if you're pressing too hard. Start taking better care of your trouble areas. Make sure you're getting the most from your brush head. Takes you back to any missed spots for 100% coverage. Guides you to brush and highlights missed areas. Choose from 4 modes and 3 intensity settings. Removes up to 10x more plaque for a deep clean.
Easy and stylish charging - home and away. Brush heads automatically select the optimal settings. Guides you to reduce your scrubbing. Alerts you if you're pressing too hard. Start taking better care of your trouble areas. Make sure you're getting the most from your brush head. Takes you back to any missed spots for 100% coverage. Guides you to brush and highlights missed areas. Choose from 4 modes and 3 intensity settings. Removes up to 10x more plaque for a deep clean.
Last updated at 10/09/2026 02:25:36
Philips Sonicare DiamondClean 9400 Electric Toothbrush with App HX9917/88, Networked Cleaning, Pressure Sensor, Intelligent Brush Head Detection, 4
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Philips Sonicare DiamondClean Smart 9400 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Cleaning Modes and 3
Delivery between 16–19 Sept $29
Philips Sonicare DiamondClean Smart 9400 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Cleaning Modes and
Delivery between 14–18 Sept $35.88
| Features | |
| Bluetooth | Y |
| Brush shape | Oval |
| Pressure sensor | Y |
| Detachable head | Y |
Philips Sonicare DiamondClean 9400 Electric Toothbrush with App HX9917/88, Networked Cleaning, Pressure Sensor, Intelligent Brush Head Detection, 4
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Philips Sonicare DiamondClean Smart 9400 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Cleaning Modes and 3
Delivery between 16–19 Sept $29
Philips Sonicare DiamondClean Smart 9400 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Cleaning Modes and
Delivery between 14–18 Sept $35.88
| Features | |
| Bluetooth | Y |
| Brush shape | Oval |
| Pressure sensor | Y |
| Detachable head | Y |
