Comparison guide
OnePlus 12 vs Xiaomi 14 Ultra: which should you choose?
OnePlus 12 and Xiaomi 14 Ultra compared under one framework. One recorded specification difference is Battery capacity: 5400 mAh on the OnePlus 12 against 5300 mAh on the Xiaomi 14 Ultra. Specifications and their sources are recorded alongside.
Published: 2026-06-04 · Updated: 2026-09-21
Smartphones verdict
Undocumented scoring basis · overall score and upgrade ranking withheld. The table records stored representative configurations; confirm the configuration and price on the merchant page before buying.
- OnePlus 12: A speed-obsessed flagship — 100W charging and a 6.82-inch 2K screen at great value.
- Xiaomi 14 Ultra: Leica camera, maxed out — a 1-inch main sensor and variable aperture, all in on photography.
- Undocumented quality and performance advantages are not ranked
- Specification field coverage (not accuracy): 100%
Choosing between OnePlus 12 and Xiaomi 14 Ultra starts with the real use case and the problem to solve, not with which product is newer. No independent laboratory test is implied.
Core specifications on one baseline
| Item | OnePlus 12 | Xiaomi 14 Ultra | Delta |
|---|---|---|---|
| Screen size | 6.82 in AskRS catalog index · check date not recorded | 6.73 in AskRS catalog index · check date not recorded | -1.3% |
| Refresh rate | 120 Hz AskRS catalog index · check date not recorded | 120 Hz AskRS catalog index · check date not recorded | Same |
| Peak brightness | 4500 nits AskRS catalog index · check date not recorded | 3000 nits AskRS catalog index · check date not recorded | -33.3% |
| Battery capacity | 5400 mAh AskRS catalog index · check date not recorded | 5300 mAh AskRS catalog index · check date not recorded | -1.9% |
| Main camera | 50 MP AskRS catalog index · check date not recorded | 50 MP AskRS catalog index · check date not recorded | Same |
| Weight | 220 g AskRS catalog index · check date not recorded | 224 g AskRS catalog index · check date not recorded | +1.8% |
| Wired charging | 100 W AskRS catalog index · check date not recorded | 90 W AskRS catalog index · check date not recorded | -10% |
| Camera system | 50MP main f/1.6 + 48MP ultrawide + 64MP 3x tele (Hasselblad) | 50MP 1-inch main f/1.63-4.0 + 50MP ultrawide + 50MP 3.2x tele + 50MP 5x tele (Leica) | Different |
| Chipset | Snapdragon 8 Gen 3 | Snapdragon 8 Gen 3 | Same |
| Color | Flowy Emerald | Black | Different |
| Connectivity | 5G Sub-6, Wi-Fi 7, Bluetooth 5.4, USB-C 3.2 | 5G Sub-6, Wi-Fi 7, Bluetooth 5.4, USB-C 3.2 | Same |
| CPU model | Snapdragon 8 Gen 3 octa-core (3.30GHz) | Snapdragon 8 Gen 3 octa-core (3.30GHz) | Same |
| GPU model | Adreno 750 | Adreno 750 | Same |
| Memory | 16 GB | 16 GB | Same |
| Operating system | OxygenOS 14 (Android 14) | HyperOS (Android 14) | Different |
| Panel | LTPO ProXDR AMOLED | LTPO AMOLED (1-inch sensor) | Different |
| Region | GLOBAL | GLOBAL | Same |
| Storage | 512 GB | 512 GB | Same |
14 of the 36 values in this table carry a source. The rest have no source on record, which is not the same as being wrong.
How to read Same, Different, No data, Unverified and Not applicable is documented on the configuration-level specification screen. If a condition you require is unknown, withhold the decision and match the exact model, sales region and configuration against the sources on that screen.
Differences recorded in the table
4 fields can be ranked on the same basis, listed by weight.
- Battery capacity · OnePlus 12 5400 mAh, Xiaomi 14 Ultra 5300 mAh (-1.9%)
- Wired charging · OnePlus 12 100 W, Xiaomi 14 Ultra 90 W (-10%)
- Peak brightness · OnePlus 12 4500 nits, Xiaomi 14 Ultra 3000 nits (-33.3%)
- Weight · OnePlus 12 220 g, Xiaomi 14 Ultra 224 g (+1.8%)
The decision axes and the checking order for the whole category are on the Smartphones comparison page.
The two products this comparison names
Match the listing against these models first. The recorded-field count is catalogue completeness, not product quality.
- OnePlus 12 · OnePlus · model number CPH2581 · released 2024 · recorded fields 18/18
- Xiaomi 14 Ultra · Xiaomi · model number 24031PN0DG · released 2024 · recorded fields 18/18
Fields the two products share
9 recorded fields hold the same value for both stored representative configurations, so nothing in this list separates them.
- Refresh rate · 120 Hz
- Main camera · 50 MP
- Chipset · Snapdragon 8 Gen 3
- Connectivity · 5G Sub-6, Wi-Fi 7, Bluetooth 5.4, USB-C 3.2
- CPU model · Snapdragon 8 Gen 3 octa-core (3.30GHz)
- GPU model · Adreno 750
- Memory · 16 GB
- Region · GLOBAL
- Storage · 512 GB
Who should choose OnePlus 12
OnePlus 12 leads the table on Battery capacity, Wired charging, Peak brightness, Weight. A speed-obsessed flagship — 100W charging and a 6.82-inch 2K screen at great value.
Who should choose Xiaomi 14 Ultra
Xiaomi 14 Ultra leads no field in the table, so choose it on price and purchase terms. Leica camera, maxed out — a 1-inch main sensor and variable aperture, all in on photography.
How to read price and purchase availability
No merchant link is shown: neither product has an approved listing whose name and configuration match the catalogue, and AsKrs does not guess a destination.
- OnePlus 12 · No verified purchase link currently available
- Xiaomi 14 Ultra · No verified purchase link currently available
This comparison is built from published specifications and stored representative configurations. The use context, configuration checks, switching costs, and the scope and limits for Smartphones are documented on the Smartphones comparison page.