Run Gemma 4 on iPhone 14 with Google AI Edge Gallery
iPhone 14 is the oldest iPhone with confirmed real-world Gemma 4 benchmarks. A Hacker News user reported running Gemma 4 E2B at 12 tokens per second on the A15 Bionic chip with 6 GB of RAM in April 2026, slow compared to newer iPhones, but still usable for short prompts and casual chat. The older silicon stays cool under load, which is a nice side effect when newer A18 Pro devices report thermal throttling. If you own an iPhone 14 and are not upgrading soon, Google AI Edge Gallery still gives you a real on-device AI experience.
On the iPhone 14 (Apple A15 Bionic, 6GB RAM), run Google Gemma 4 E2B at ~12 tok/s (measured) via Google AI Edge Gallery. Gemma 4 E2B is ~2.5 GB on disk and uses 1-1.5 GB in memory, fully offline, no account required.
→ Install Google AI Edge Gallery (iOS 17+), then download Gemma 4.
Speed is a real-world user-reported measurement; on-device speed varies with thermal state.
Verdict
Recommended: Gemma 4 E2BiPhone 14 is the slowest supported iPhone for Gemma 4, but it works. ~12 tok/s is enough for casual use, and the older chip stays cool.
Gemma 4 Performance on iPhone 14
Speeds via Google AI Edge Gallery on iOS 17+. "Measured" numbers come from real-world Hacker News user reports; "Estimated" numbers are interpolations from chip generation. Both Gemma 4 variants use int4 quantization-aware training.
Best for
- iPhone 14 owners who are not upgrading soon
- Short prompts and casual chat
- Offline translation in a pinch
- Trying Gemma without spending money on new hardware
Watch outs
- Slowest of the supported iPhones. Long responses test patience
- Gemma 4 E4B is not recommended on 6 GB RAM
- Apple Intelligence is not supported on iPhone 14 at all
Setup Guide
Step-by-step install for Google AI Edge Gallery on iPhone 14, plus full benchmarks and the privacy details.