14 Ultra vs Redmi Note 15 5G

Phone 1

Phone 2

Winner

Xiaomi Redmi Note 15 5G

Lifespan decides this one: the Redmi Note 15 5G is supported until Dec 2029 at $6.03 per month of safe use, while the 14 Ultra runs out in Feb 2029 ($23.29/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 14 Ultra 64 · Redmi Note 15 5G 71 — methodology

The lifespan decider

When specs are close, support length decides it — this is what each phone costs per month of safe use.

Xiaomi 14 Ultra $750

Buy with care$23.29/mo

2024◆ Buy-by Feb 20272029

Xiaomi Redmi Note 15 5G $250

Safe to buy$6.03/mo

2025◆ Buy-by Dec 20272029

Category by category

Display

14 Ultra 90Redmi Note 15 5G 80

The 14 Ultra's screen is the better one — 6.73-inch ltpo amoled, 3200 x 1440, 120hz.

Performance

14 Ultra 92Redmi Note 15 5G 48

The 14 Ultra's Qualcomm Snapdragon 8 Gen 3 is simply the faster chip.

Camera

14 Ultra 91Redmi Note 15 5G 67

The 14 Ultra has the stronger camera system (4 real rear lenses vs 2).

Battery

14 Ultra 80Redmi Note 15 5G 90

5,520mAh vs 5,000mAh — the Redmi Note 15 5G lasts longer between charges.

Software longevity

14 Ultra 38Redmi Note 15 5G 49

The Redmi Note 15 5G is supported until Dec 2029 — 9 months longer than the 14 Ultra.

Value

14 Ultra 64Redmi Note 15 5G 71

Overall value goes to the Redmi Note 15 5G at $6.03 per month of safe use.

Full spec table

Spec	14 Ultra	Redmi Note 15 5G
Price (street)	$750	$250
Display	6.73-inch LTPO AMOLED, 3200 x 1440, 120Hz	6.77-inch AMOLED, FHD+, 120Hz, 3200 nits peak
Chipset	Qualcomm Snapdragon 8 Gen 3	Qualcomm Snapdragon 6 Gen 3
RAM	12GB/16GB	8GB
Storage	256GB/512GB/1TB	256GB/512GB
Battery	5,000 mAh	5,520 mAh
Charging	90W wired, 80W wireless	45W wired
Rear cameras	50MP main, 50MP ultra-wide, 50MP telephoto 3.2x, 50MP periscope telephoto 5x	108MP main, 8MP ultra-wide
Dimensions	161.4 × 75.3 × 9.2 mm	164 × 75.4 × 7.4 mm
Weight	220 g	178 g
Water resistance	IP68	IP66
Supported until	Feb 2029	Dec 2029

14 Ultra full verdict →Redmi Note 15 5G full verdict →Longevity master board →

Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.