A correction on the processor name
Notebookcheck's headline summary calls the chip a "Core Ultra 5 320". That's a slip. The article body and other coverage identify it as the Intel Core 5 320, part of Intel's Core Series 3 family, codenamed Wildcat Lake. Both models use the Core 5 320, a mid-range Wildcat Lake part, with 16GB of LPDDR5X RAM.
This matters because Core Ultra and Core Series 3 are different product tiers. Core Series 3 is the more modest, efficiency-minded line.
TweakTown's pre-launch coverage describes the Core 5 320 in more detail:
- It's built on the Intel 18A process and has six cores and six threads: two Cougar Cove performance cores and four Darkmont low-power efficient cores.
- It boosts up to 4.6GHz, with a 15W base power and a 35W maximum turbo power.
- Intel's Core 5 320 spec sheet also lists a 16-TOPS NPU, according to an earlier WindowsForum report on the Geekbench leak. That report notes Windows Studio Effects support, and says it's unknown whether Xiaomi enables those features.
14-inch vs. 16-inch
Notebookcheck says the two models differ mainly in display and weight. The 14-inch model has the better panel on paper:
| Spec | 14-inch | 16-inch |
|---|---|---|
| Resolution (marketed) | "2.8K" | "2.5K" |
| Brightness | 500 nits | 400 nits |
| Refresh rate | 120Hz | 120Hz |
| Claimed weight | 1.28kg (2.82lb) | 1.56kg (3.43lb) |
| Claimed thickness | 14.35mm | 14.35mm |
| Battery | 72Wh | 72Wh |
The report doesn't give exact pixel dimensions or panel technology, so I won't guess at them. The 16-inch model is 280g heavier. In return you get more screen area, and Notebookcheck's figures show the same thickness for both.
Ports, cooling and charging
Both laptops reportedly have:
- two USB 3.2 Gen 2 Type-C ports
- two USB 3.2 Gen 1 Type-A ports
- one HDMI 2.1 port
There's also a dual-fan cooling system. Notebookcheck says this "should" help the chip hold up under heavy load. That's an expectation, not a tested result.
One caveat on ports: Xiaomi's earlier promotional material for the 14-inch model also showed a 3.5mm audio jack. The launch report's port list doesn't mention one. I wouldn't treat the audio jack as confirmed for either retail model.
Charging is 68W, and there are four colour options. The report doesn't give a charge time or list all four colours.
Battery claims
Xiaomi claims up to 20.2 hours of runtime on the 14-inch model. The earlier TweakTown report adds that this is simulated office work, with 1.26 days of local video playback also claimed. TweakTown also says those figures await independent testing.
Treat 20.2 hours as a best-case marketing number. A 72Wh pack is large for a 14mm-class laptop. A chip with a 15W base power should also help, and that is general industry reasoning rather than a test result. But a 120Hz panel, a brighter 500-nit display and real workloads usually cut well below "simulated office" figures. The launch report gives no runtime claim for the 16-inch model.
Memory: launch spec vs. leak
Before launch, a Redmi Book 16 2027 appeared in Geekbench. That listing showed a Core 5 320 with 16GB of DDR5-4800 memory. Xiaomi hadn't confirmed whether that configuration would carry over to retail units. Xiaomi's pre-launch material for the 14-inch model pointed to LPDDR5X-7467 memory.
For the launch models, use the launch report's LPDDR5X claim. The Geekbench DDR5-4800 entry was a test listing. Whether the memory is soldered or upgradeable isn't established here. LPDDR5X is typically soldered, which is general industry knowledge and not something these sources confirm for this model.
Price and availability
Notebookcheck's report gives these China prices:
- 14-inch: starts at CNY 6,799.
- 16-inch: starts at CNY 6,999.
- Base configuration (both): 16GB of RAM and a 512GB SSD.
Notebookcheck's own US dollar conversions disagree. Its summary gives about $1,019 and the photo caption gives about $1,109. I'm leaving out dollar figures for that reason.
For context, Back2Gaming says the outgoing Redmi Book 14 starts at CNY 6,499 with 16GB of RAM and 512GB of storage. The new 14-inch model is therefore CNY 300 more at the starting tier.
Global availability is unconfirmed. Notebookcheck says Xiaomi could launch the lineup globally soon, but that is speculation. Gagadget notes that Redmi often keeps products China-only. It adds that imports usually mean no local warranty and a keyboard layout built for China.
What this means for Windows buyers
The outgoing generation used a different chip. The 2026 Redmi Book 14 and 16 used Intel's Core Ultra 5 125H. TweakTown reads the move to Wildcat Lake as favouring efficiency over multi-core muscle. That is plausible, but it isn't tested. The 125H has far more cores, so expect the Core 5 320 to trade some multi-threaded performance for battery life.
Things still unknown:
- Independent battery results, thermals and sustained performance.
- The operating system and software load. Nothing in these sources states which Windows edition ships. Earlier reporting noted Xiaomi teasing "Super AI 2.0" office features.
- Pricing and availability outside China.
- The exact panel type.
For now, this is a spec-sheet launch. A big battery, a 120Hz screen and a decent port set in a thin chassis is a good combination. Whether the Core 5 320 delivers on it will come down to reviews.