Gemma 4 31B

Needs ~22GB of memory at Q4_K_M and runs on 0 of the 99 phones we track — 0 of them smoothly.

PARAMS

31B

FAMILY

gemma

RELEASED

2026-03

Downloads & memory by quant

The download is only the weights — add KV cache and runtime to get what your phone actually needs. ★ = recommended.

Quant	Download	Memory needed	Fits on
Q3_K_M	14.7 GB	~18.2 GB	3 of 99 phones
IQ4_XS	16.4 GB	~20 GB	3 of 99 phones
Q4_0	17.3 GB	~20.9 GB	no phone
Q4_K_S	17.4 GB	~21 GB	no phone
Q4_K_M ★	18.3 GB	~22 GB	no phone
Q5_K_M	21.7 GB	~25.6 GB	no phone
Q6_K	25.2 GB	~29.2 GB	no phone
Q8_0	32.6 GB	~37 GB	no phone

Gemma 4 31B on 99 phones

At Q4_K_M, on each phone's largest RAM option. Tap a phone for the full report.

	Phone	Chip · RAM	Needs	Speed	Verdict
F	OnePlus 13	Snapdragon 8 Elite · 24 GB	22 / 20 GB	—	✕ Won't fit
F	OnePlus 12	Snapdragon 8 Gen 3 · 24 GB	22 / 20 GB	—	✕ Won't fit
F	ROG Phone 9 Pro	Snapdragon 8 Elite · 24 GB	22 / 20 GB	—	✕ Won't fit
F	Galaxy S25 Ultra	Snapdragon 8 Elite · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Pixel 9 Pro	Google Tensor G4 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Xiaomi 15 Pro	Snapdragon 8 Elite · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Xiaomi 14	Snapdragon 8 Gen 3 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	OPPO Find X8 Pro	Dimensity 9400 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	vivo X200 Pro	Dimensity 9400 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	vivo X100 Pro	Dimensity 9300 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Nothing Phone (3)	Snapdragon 8s Gen 4 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Motorola Edge 50 Ultra	Snapdragon 8s Gen 3 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	HONOR Magic7 Pro	Snapdragon 8 Elite · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Galaxy S26 Ultra	Snapdragon 8 Elite Gen 5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Xiaomi 17	Snapdragon 8 Elite Gen 5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Xiaomi 17 Pro	Snapdragon 8 Elite Gen 5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	OnePlus 15	Snapdragon 8 Elite Gen 5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	vivo X300 Pro	Dimensity 9500 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	OPPO Find X9 Pro	Dimensity 9500 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Pixel 10 Pro	Google Tensor G5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Galaxy Z Fold7	Snapdragon 8 Elite · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Motorola Razr Ultra (2025)	Snapdragon 8 Elite · 16 GB	22 / 12 GB	—	✕ Won't fit
F	OnePlus 13R	Snapdragon 8 Gen 3 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	OnePlus 15R	Snapdragon 8 Gen 5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Pixel 9 Pro XL	Google Tensor G4 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Pixel 10 Pro XL	Google Tensor G5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Motorola Razr Ultra (2026)	Snapdragon 8 Elite · 16 GB	22 / 12 GB	—	✕ Won't fit
F	RedMagic 11 Air	Snapdragon 8 Elite · 16 GB	22 / 12 GB	—	✕ Won't fit
F	RedMagic 11S Pro	Snapdragon 8 Elite Gen 5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Honor Magic8 Pro	Snapdragon 8 Elite Gen 5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Xperia 1 VII	Snapdragon 8 Elite · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Xperia 1 VIII	Snapdragon 8 Elite Gen 5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Galaxy Z Fold8	Snapdragon 8 Elite Gen 5 · 16 GB	22 / 12 GB	—	✕ Won't fit
F	Galaxy S25	Snapdragon 8 Elite · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy S24 Ultra	Snapdragon 8 Gen 3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy S24	Samsung Exynos 2400 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy S23 Ultra	Snapdragon 8 Gen 2 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy A55	Exynos 1480 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	iPhone 16 Pro Max	Apple A18 Pro · 8 GB	22 / 5.2 GB	—	✕ Won't fit
F	iPhone 16 Pro	Apple A18 Pro · 8 GB	22 / 5.2 GB	—	✕ Won't fit
F	iPhone 16	Apple A18 · 8 GB	22 / 5.2 GB	—	✕ Won't fit
F	iPhone 15 Pro	Apple A17 Pro · 8 GB	22 / 5.2 GB	—	✕ Won't fit
F	iPhone 15	Apple A16 Bionic · 6 GB	22 / 3.9 GB	—	✕ Won't fit
F	iPhone 14	Apple A15 Bionic · 6 GB	22 / 3.9 GB	—	✕ Won't fit
F	Pixel 9	Google Tensor G4 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Pixel 8 Pro	Google Tensor G3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Pixel 8a	Google Tensor G3 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Redmi Note 13 Pro	Snapdragon 7s Gen 2 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	POCO X6 Pro	Dimensity 8300 Ultra · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Nothing Phone (2a)	Dimensity 7200 Pro · 12 GB	22 / 9 GB	—	✕ Won't fit
F	iPhone 17	Apple A19 · 8 GB	22 / 5.2 GB	—	✕ Won't fit
F	iPhone Air	Apple A19 Pro · 12 GB	22 / 7.8 GB	—	✕ Won't fit
F	iPhone 17 Pro	Apple A19 Pro · 12 GB	22 / 7.8 GB	—	✕ Won't fit
F	iPhone 17 Pro Max	Apple A19 Pro · 12 GB	22 / 7.8 GB	—	✕ Won't fit
F	Galaxy S26	Snapdragon 8 Elite Gen 5 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy S26+	Snapdragon 8 Elite Gen 5 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Pixel 10	Google Tensor G5 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	iPhone 16e	Apple A18 · 8 GB	22 / 5.2 GB	—	✕ Won't fit
F	Pixel 9a	Google Tensor G4 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Galaxy S25 FE	Samsung Exynos 2400 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Nothing Phone (3a)	Snapdragon 7s Gen 3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy A16 5G	Exynos 1330 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Galaxy A17 5G	Exynos 1330 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Galaxy A26 5G	Exynos 1380 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Galaxy A36 5G	Snapdragon 6 Gen 3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy A56 5G	Exynos 1580 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy Z Fold6	Snapdragon 8 Gen 3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy Z Flip6	Snapdragon 8 Gen 3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy Z Flip7	Exynos 2500 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Moto G (2025)	Dimensity 6300 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Moto G Power (2025)	Dimensity 6300 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Moto G Stylus (2025)	Snapdragon 6 Gen 3 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Moto G (2026)	Dimensity 6300 · 4 GB	22 / 2 GB	—	✕ Won't fit
F	Moto G Power (2026)	Dimensity 6300 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Moto G Stylus (2026)	Snapdragon 6 Gen 3 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Motorola Razr (2025)	Dimensity 7400X · 8 GB	22 / 6 GB	—	✕ Won't fit
F	iPhone 17e	Apple A19 · 8 GB	22 / 5.2 GB	—	✕ Won't fit
F	Pixel 10a	Google Tensor G4 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Galaxy A57 5G	Exynos 1680 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Galaxy A37 5G	Exynos 1480 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Motorola Razr (2026)	Dimensity 7450X · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Motorola Razr+ (2026)	Snapdragon 8s Gen 3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Motorola Edge (2026)	Dimensity 7450 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Nothing Phone (4a) Pro	Snapdragon 7 Gen 4 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Redmi Note 14 Pro 5G	Dimensity 7300 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Redmi Note 15 Pro 5G	Dimensity 7400 Ultra · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Redmi Note 15 5G	Snapdragon 6 Gen 3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Redmi Note 14 Pro+ 5G	Snapdragon 7s Gen 3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Redmi Note 15 Pro+ 5G	Snapdragon 7s Gen 4 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Xiaomi 15T	Dimensity 8400 Ultra · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Xiaomi 15T Pro	Dimensity 9400+ · 12 GB	22 / 9 GB	—	✕ Won't fit
F	POCO X7 Pro	Dimensity 8400 Ultra · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Honor 400	Snapdragon 7 Gen 3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	CMF Phone 2 Pro	Dimensity 7300 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	AQUOS sense10	Snapdragon 7s Gen 3 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	AQUOS sense9	Snapdragon 7s Gen 2 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	AQUOS R10	Snapdragon 7+ Gen 3 · 12 GB	22 / 9 GB	—	✕ Won't fit
F	Xperia 10 VII	Snapdragon 6 Gen 3 · 8 GB	22 / 6 GB	—	✕ Won't fit
F	Galaxy Z Flip8	Snapdragon 8 Elite Gen 5 · 12 GB	22 / 9 GB	—	✕ Won't fit

~ = bandwidth-based estimate · ✓ = measured on real hardware

FAQ

How much RAM do I need to run Gemma 4 31B on a phone?

At Q4_K_M, Gemma 4 31B needs ~22GB of usable memory (weights + KV cache + runtime). In practice that means no current Android phone or no current iPhone — iOS lets a single app use less of its RAM than Android does.

How fast does Gemma 4 31B run on a flagship phone?

It doesn't fit on any of the 99 phones we track at Q4_K_M — it needs ~22GB of usable memory.

Can an iPhone run Gemma 4 31B?

Not really: the best iPhone we track (iPhone 16 Pro Max) has ~5.2GB usable, but Gemma 4 31B needs 22GB at Q4_K_M.

What is the best quantization of Gemma 4 31B for mobile?

Q4_K_M (18.3GB download) is the size/quality sweet spot of the 8 quants available. Total memory needed is ~22GB once the KV cache and runtime are counted — the download size alone understates it.

How many phones can run Gemma 4 31B?

0 of the 99 phones we track fit it at Q4_K_M; 0 run it smoothly. The rest fall short on usable RAM.

What is Gemma 4 31B good for on a phone?

It's tagged for chat, vision, reasoning. At 31B parameters, it prioritizes answer quality over speed — expect slower decoding.

Gemma 4 31B

Downloads & memory by quant

Gemma 4 31B on 99 phones

FAQ

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