Device: iPad Pro M4 (16GB, 1TB/2TB config)
Category: iphone
Memory: 16 GB (unified), usable for models: 12 GB
Memory bandwidth: 120 GB/s
MSRP (USD): 1599
TDP: 14 W
Best runtime: MLX (via Python or Swift; mlx-lm package)
Notes: iPad, not iPhone, categorized as 'iphone' due to schema enum limitation. 16GB unified memory only available on 1TB and 2TB storage configurations per Apple Support KB article (support.apple.com/en-us/119891). 256GB/512GB configs ship with 8GB. M4 chip with 10-core GPU. iPadOS overhead ~3-4GB; ~12GB usable for model weights (community estimate, ~75% of total per Apple Silicon architecture). MLX framework (Apple's ML framework for Apple Silicon) achieves ~61 tok/s on Llama 3.2 3B. Practical ceiling: 7B-13B Q4_K_M models fit; 30B Q4_K_M (~19GB) also fits with headroom.