Can Qwen3 1.7B run on Galaxy S23 Ultra?
YES — Runs great
Grade S · 100/100 · formula estimate
What this means
Our estimate says Qwen3 1.7B should fit comfortably on your Galaxy S23 Ultra.
Download the Q8_0 version, which is about 1.8 GB. We expect it to use about 2.6 GB of the roughly 9 GB available to a model on this phone.
At the estimated speed, a roughly 300-word answer may take about 24 seconds to finish.
This result is calculated from the phone and model specifications. It has not been measured on this exact phone and setup.
16.8tokens/s
estimated · instant
2.6GB
needed at Q8_0
Q8_0
quant checked
S
grade · 100/100
needs 2.6 GBusable 9 GB
Snapdragon 8 Gen 212 GB RAMCPU / GPUalso sold with 8 GB
See how fast it feels
Estimated at 16.8 tokens/s — instant. A ~300-word reply takes about 24 seconds on this phone.
Where the memory goes
| Component | Detail | GB |
|---|---|---|
| Model weights | Q8_0 GGUF (1.8 GB) + mmap overhead | 1.9 |
| KV cache | 4K context window | 0.1 |
| Runtime | llama.cpp + app overhead | 0.6 |
| Total needed | at Q8_0, 4K context | 2.6 |
| Usable on Galaxy S23 Ultra | 12 GB RAM − Android system reserve | 9 |
| Headroom | left for the OS and your other apps | 6.4 |
Pick your quant
| Quant | Download | Verdict | Speed |
|---|---|---|---|
| Q8_0 BEST HERE | 1.8 GB | ✓ Runs great | ~16.8 tokens/s |
Get it running in 3 steps
1
Install PocketPal from the Play Store — free, no account needed.
2
Download "Qwen3 1.7B Q8_0" in the in-app model hub — 1.8 GB, use Wi-Fi. Search Hugging Face for
Qwen/Qwen3-1.7B-GGUF and pick the Q8_0 file.3
Set context to 4K — expect ~16.8 tokens/s on this phone.
Related checks
MORE ON GALAXY S23 ULTRA
QWEN3 1.7B ON OTHER PHONES