PhoneLifespan

iPhone SE (3rd gen) vs Redmi Note 15 5G

vs

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 iPhone SE (3rd gen) runs out in Mar 2029 ($3.03/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iPhone SE (3rd gen) 56 · 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.

Apple iPhone SE (3rd gen) $100
Buy with care$3.03/mo
2022◆ Buy-by Mar 20272029
Xiaomi Redmi Note 15 5G $250
Safe to buy$6.03/mo
2025◆ Buy-by Dec 20272029

Category by category

Display
iPhone SE (3rd gen) 50Redmi Note 15 5G 80

The Redmi Note 15 5G's screen is the better one — 6.77-inch amoled, fhd+, 120hz, 3200 nits peak.

Performance
iPhone SE (3rd gen) 74Redmi Note 15 5G 48

The iPhone SE (3rd gen)'s Apple A15 Bionic is simply the faster chip.

Camera
iPhone SE (3rd gen) 40Redmi Note 15 5G 67

The Redmi Note 15 5G has the stronger camera system (2 real rear lenses vs 1).

Battery
iPhone SE (3rd gen) 20Redmi Note 15 5G 90

5,520mAh vs 2,018mAh — the Redmi Note 15 5G lasts longer between charges.

Software longevity
iPhone SE (3rd gen) 39Redmi Note 15 5G 49

The Redmi Note 15 5G is supported until Dec 2029 — 8 months longer than the iPhone SE (3rd gen).

Value
iPhone SE (3rd gen) 56Redmi Note 15 5G 71

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

Full spec table
SpeciPhone SE (3rd gen)Redmi Note 15 5G
Price (street)$100$250
Display4.7-inch Retina HD LCD, 60Hz6.77-inch AMOLED, FHD+, 120Hz, 3200 nits peak
ChipsetApple A15 BionicQualcomm Snapdragon 6 Gen 3
RAM4GB8GB
Storage64GB/128GB/256GB256GB/512GB
Battery2,018 mAh5,520 mAh
Charging20W wired, Qi wireless 7.5W45W wired
Rear cameras12MP main108MP main, 8MP ultra-wide
Dimensions138.4 × 67.3 × 7.3 mm164 × 75.4 × 7.4 mm
Weight144 g178 g
Water resistanceIP67IP66
Supported untilMar 2029Dec 2029
iPhone SE (3rd gen) 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.