Gemma 4 on Android
Best first choice
Section titled “Best first choice”For most people, the fastest path is AI Edge Gallery. It is the cleanest way to test Gemma 4 on Android without building your own runtime stack first.
Recommended model sizes
Section titled “Recommended model sizes”- E2B: safest default for broad Android compatibility
- E4B: use when the device is stronger and you want better quality
Setup order
Section titled “Setup order”- Install the runtime you plan to use, starting with AI Edge Gallery.
- Confirm the device storage and free RAM situation before downloading models.
- Start with E2B if you are unsure.
- Move to E4B only after the smaller model loads cleanly and feels stable.
What people usually get wrong
Section titled “What people usually get wrong”- They jump straight to the larger model.
- They assume the phone’s GPU or NPU is automatically being used.
- They treat “the app opens” as the same thing as “the model is running well.”
If Android feels slow
Section titled “If Android feels slow”- Turn off extra features you do not need.
- Drop to the smaller model size.
- Test whether the app is using CPU only.
- Compare against a known-good route like AI Edge Gallery before blaming Gemma 4 itself.
Open the AI Edge Gallery guide This is the fastest route for most Android users.