The differences between Philips cutter head sh70 and sh50 cutter head are: different replacement reminders, different blades, and different razors.

1. Different replacement reminders

1. Cutter head sh70: The cutter head sh70 does not have a built-in replacement reminder.

2. Cutter head sh50: The cutter head sh50 has a built-in replacement reminder.

2. Different blades

1. Cutter head sh70: The cutter head sh70 is equipped with a double-layer multi-blade system.

2. Cutter head sh50: The cutter head sh50 is equipped with a single-layer multi-blade system.

3. Different shavers

1. Blade sh70: The blade sh70 is suitable for Star Wars? SW77xx series razors.

2. SH50 cutter head: SH50 cutter head is suitable for AquaTouch 5000 series and 6000 series shavers.

Suitable for S6000?

philips official website - Shaver series 7000 shaving head SH70/51

philips official website - Shaver series 5000 shaving head SH50 /51