Xiaomi 14T to Xiaomi 15T: Is It Worth Upgrading?
A plain-English look at what actually changes, 1 year apart.
Probably not — keep your Xiaomi 14T
The Xiaomi 15T is 1 year newer than the Xiaomi 14T, and the BeastScore drops from 88.9 to 87.0. The biggest improvements: newer mediatek dimensity 8400-ultra mt6899 chipset (replaces mediatek dimensity 8300), 500 mah bigger battery, 0.2" larger screen. Trade-offs to know: battery rated 27 points lower, display rated 44 points lower.
What you gain with the Xiaomi 15T
- Newer MediaTek Dimensity 8400-Ultra MT6899 chipset (replaces MediaTek Dimensity 8300)
- 500 mAh bigger battery
- 0.2" larger screen
What you give up
- Battery rated 27 points lower
- Display rated 44 points lower
- Lower refresh rate (−24Hz)
- 800 nits dimmer peak display
Head-to-head
| Spec | Xiaomi 14T | Xiaomi 15T | Change |
|---|---|---|---|
| BeastScore (overall) | 88.9 | 87.0 | −1.9 |
| Battery score | 88 | 61 | −27 (31%) |
| Display score | 96 | 52 | −44 (46%) |
| Chipset | MediaTek Dimensity 8300 | MediaTek Dimensity 8400-Ultra MT6899 | New generation chip |
| Battery capacity | 5,000 mAh | 5,500 mAh | +500 mAh (10%) |
| Wired charging | 67W | 67W | No real change |
| Screen size | 6.7" | 6.8" | +0.2" |
| Refresh rate | 144Hz | 120Hz | −24Hz (17%) |
| Peak brightness | 4,000 nits | 3,200 nits | −800 nits (20%) |
| Main camera | 50 MP | 50 MP | No real change |
| Optical zoom | 2x | 2x | No real change |
| RAM | 12 GB | 12 GB | No real change |
| Weight | 195 g | 194 g | No real change |
Upgrade if…
- You regularly run out of battery before the end of the day
- You play demanding games or want the newest on-device AI features
Xiaomi 14T to Xiaomi 15T: Common Questions
Is it worth upgrading from the Xiaomi 14T to the Xiaomi 15T?
Probably not — keep your Xiaomi 14T. The Xiaomi 15T is 1 year newer than the Xiaomi 14T, and the BeastScore drops from 88.9 to 87.0. The biggest improvements: newer mediatek dimensity 8400-ultra mt6899 chipset (replaces mediatek dimensity 8300), 500 mah bigger battery, 0.2" larger screen. Trade-offs to know: battery rated 27 points lower, display rated 44 points lower.
What is the biggest difference between the Xiaomi 14T and Xiaomi 15T?
Newer MediaTek Dimensity 8400-Ultra MT6899 chipset (replaces MediaTek Dimensity 8300): MediaTek Dimensity 8300 on the Xiaomi 14T vs MediaTek Dimensity 8400-Ultra MT6899 on the Xiaomi 15T.
Does the Xiaomi 15T have a bigger battery than the Xiaomi 14T?
The Xiaomi 15T has a 5,500 mAh battery versus 5,000 mAh on the Xiaomi 14T (+500 mAh (10%)).
Who should upgrade to the Xiaomi 15T?
Upgrade if: You regularly run out of battery before the end of the day; You play demanding games or want the newest on-device AI features.