AI Models for nubia NaviX Ultra — What runs on 16GB

35 great · 21 slow · 41 won't fit
Chip
Snapdragon 8 Elite Gen 5
Memory bandwidth
84.8 GB/s
NPU
80 TOPS
RAM options
12 / 16 GB
Usable for models
~12 GB
Year
2026

Specs checked against manufacturer and public documentation on . China; integrates the consumer edition of the Doubao phone assistant.

What runs on the nubia NaviX Ultra

All 97 models at their recommended quant, on the 16GB configuration. Select any row for the full report.

ModelParamsQuantNeedsSpeedVerdict

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

Best model by use case

Best for Chat

Top everyday assistant & writing pick here — ~63.6 tokens/s at Q8_0, using 1.3 of ~12GB.

Best for Coding

Top code completion & explain-this pick here — ~15.3 tokens/s at Q4_K_M, using 3.5 of ~12GB.

Best for Reasoning

Top math & step-by-step thinking pick here — ~15.3 tokens/s at Q4_K_M, using 3.5 of ~12GB.

FAQ

What is the biggest AI model the nubia NaviX Ultra can run?

Bonsai 27B (1-bit) (27B parameters) at Q1_0 — it needs 4.8GB of the ~12GB usable on the 16GB nubia NaviX Ultra and runs at ~10 tokens/s.

How much of the nubia NaviX Ultra's 16GB RAM can AI models actually use?

About 12GB. Android keeps roughly 2–4GB for the system and resident apps, so of the 16GB about 12GB is actually available to a model.

Can the nubia NaviX Ultra run Llama 3.1 8B?

Yes — at Q4_K_M it needs 6.3GB of the ~12GB usable and runs at ~7.8 tokens/s.

How fast is local AI on the nubia NaviX Ultra?

The Snapdragon 8 Elite Gen 5 has 84.8GB/s of memory bandwidth, which is what decode speed scales with. Small models like Ternary Bonsai 1.7B reach ~76.3 tokens/s; larger 7–14B models land in the single digits. Anything above ~8 tokens/s feels smooth for chat.

Which quantization should I use on the nubia NaviX Ultra?

Q4_K_M is the size/quality sweet spot for most models. For example, Qwen3 0.6B at Q8_0 takes 1.3GB of memory here. Only drop to Q3 or IQ4 if a model just misses fitting; Q8 rarely pays off on 16GB of RAM.

Is 16GB of RAM enough for local AI?

56 of the 97 models we track fit on the nubia NaviX Ultra — 35 run great and 21 run with compromises. 41 models (mostly 12B+) don't fit at their recommended quant.