Nubia Flagship Phone First to Feature CXMT LPDDR5X as Chinese Smartphone Makers Shift to Domestic Memory
nashnova research
Nubia's NaviX Ultra goes on sale September 17 with CXMT's domestic LPDDR5X DRAM — the first large-scale commercial use of a Chinese-made chip at this spec — putting direct pressure on Samsung and SK Hynix's share of China's mid-to-high-end smartphone market.
How fast is this chip, really?
CXMT's LPDDR5X — the latest generation of high-speed mobile memory — hits a peak data rate of 10,667 Mbps, on par with equivalent Samsung and SK Hynix products.
This means → Chinese-made memory has closed the speed gap with Korean rivals. It is no longer a "good enough but one tier lower" substitute.
CXMT says this marks the first large-scale commercial deployment of a domestically produced LPDDR5X chip — moving from lab samples to consumer devices.
Why is Nubia the first to adopt it?
The NaviX Ultra starts at ¥5,999, targeting the premium segment. It also integrates ByteDance's Doubao AI assistant; Nubia calls it the first mass-produced consumer phone with an onboard AI agent.
In plain terms = Nubia chose to debut domestic memory in a flagship, not a budget phone — a signal that CXMT's chip has cleared the performance bar for high-end use.
For Nubia, the "domestic chip + AI agent" double label is also a way to differentiate in a fiercely competitive Chinese flagship market.
Should Korean memory makers worry?
Samsung and SK Hynix have long dominated the global smartphone DRAM market. Until now, Chinese premium phones relied almost entirely on Korean supply.
This means → once domestic LPDDR5X enters flagship supply chains, Korean makers face a direct slice out of their China mid-to-high-end share.
For now, CXMT has landed in only one brand. Whether this substitution trend expands to more brands and models is the key milestone to watch next.
市场有风险，内容仅供研究参考，不构成投资建议。