text model · Gemma · iOS
Can I run Gemma 4 E4B on iPhone 16?
No. Gemma 4 E4B needs ~6.5 GB even at Q4_K_M, but iPhone 16 only has ~4.5 GB usable.
Needs ~6.5 GB even at Q4_K_M, but only ~4.5 GB is usable.
That figure is at a 4k context and moves about ±15% as context length changes.
The gap is about 2 GB: Gemma 4 E4B needs roughly 6.5 GB at Q4_K_M and iPhone 16 leaves only about 4.5 GB usable for a model. The lightest tracked hardware that runs Gemma 4 E4B is the Nvidia GeForce RTX 3060 (12GB) at 12 GB. See Gemma 4 E4B on Nvidia GeForce RTX 3060 (12GB).
- Q4_K_M needed
- ~6.5 GB
- Usable on device
- ~4.5 GB
- Device memory
- 8 GB
Which quant fits
How to run it
On iOS use Apple Foundation Models (Built into iOS 26, ~3B on-device model, zero download, fully private.).
- Parameters
- 8B
- Q4_K_M size
- 4.98 GB
- Q8_0 size
- 8.19 GB
- Context
- 128k
- Ollama tag
- gemma4:e4b
- Memory
- 8 GB unified
- Usable for weights
- ~4.5 GB
- Power draw
- ~11 W
- Best runtime
- llama.cpp + Metal (via PocketPal or Off Grid app)
What you can run instead
Run Gemma 4 E4B on other hardware
FAQ
Can iPhone 16 run Gemma 4 E4B?
No. Gemma 4 E4B needs ~6.5 GB even at Q4_K_M, but iPhone 16 only has ~4.5 GB usable.
How much memory does Gemma 4 E4B need?
iPhone 16 does not have enough memory. At Q4_K_M the weights are ~4.98 GB; with KV cache and runtime overhead, budget ~6.5 GB at a 4k context.
What is the best tool to run Gemma 4 E4B on iOS?
On iPhone and iPad, Apple Foundation Models (Built into iOS 26, ~3B on-device model, zero download, fully private.) is the standard choice. Phones realistically run 1B-4B class models. Anything larger thermally throttles or OOMs.
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A live badge for your model card or README, updated as the data is. [](https://localmodel.run/can-i-run/gemma-4-e4b/iphone-16) Sources
Weights are measured from GGUF files; KV cache and overhead are computed, so totals can vary ~15% with context and runtime. Any tok/s is a bandwidth estimate. See methodology.