Questions about Philips Sleep & Wake-up Light

The HF3653/01 is Philips' latest model and offers 315 lux more maximum light intensity than the HF3651/01. The HF3653/01 also features an improved screen with automatic brightness adjustment and a new function called "AmbiTrack". AmbiTrack is an advanced algorithm that automatically measures and adjusts the light and temperature conditions in your bedroom so you can sleep in an optimal environment. The HF3653/01 also has a new function called "SmartSnooze", which allows you to interrupt the alarm clock simply by touching the top of the device.