PhoneLifespan

Galaxy M55 5G vs Poco F7 5G

vs

Winner

Xiaomi Poco F7 5G

Lifespan decides this one: the Poco F7 5G is supported until Jun 2031 at $6.23 per month of safe use, while the Galaxy M55 5G runs out in Mar 2029 ($8.10/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy M55 5G 72 · Poco F7 5G 83 methodology

The lifespan decider

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

Samsung Galaxy M55 5G $270
Buy with care$8.10/mo
2024◆ Buy-by Mar 20272029
Xiaomi Poco F7 5G $375
Safe to buy$6.23/mo
2025◆ Buy-by Jun 20292031

Category by category

Display
Galaxy M55 5G 70Poco F7 5G 80

The Poco F7 5G's screen is the better one — 6.83-inch amoled, 1.5k, 120hz, dolby vision, up to 3200 nits peak, gorilla glass 7i.

Performance
Galaxy M55 5G 70Poco F7 5G 86

The Poco F7 5G's Qualcomm Snapdragon 8s Gen 4 (4nm) is simply the faster chip.

Camera
Galaxy M55 5G 67Poco F7 5G 67

Camera systems are comparable on paper — pick by sample photos.

Battery
Galaxy M55 5G 80Poco F7 5G 100

6,500mAh vs 5,000mAh — the Poco F7 5G lasts longer between charges.

Software longevity
Galaxy M55 5G 40Poco F7 5G 72

The Poco F7 5G is supported until Jun 2031 — 27 months longer than the Galaxy M55 5G.

Value
Galaxy M55 5G 72Poco F7 5G 83

Overall value goes to the Poco F7 5G at $6.23 per month of safe use.

Full spec table
SpecGalaxy M55 5GPoco F7 5G
Price (street)$270$375
Display6.7-inch Super AMOLED Plus, 1080x2400 (FHD+), 120Hz6.83-inch AMOLED, 1.5K, 120Hz, Dolby Vision, up to 3200 nits peak, Gorilla Glass 7i
ChipsetQualcomm Snapdragon 7 Gen 1Qualcomm Snapdragon 8s Gen 4 (4nm)
RAM8GB/12GB12GB
Storage128GB/256GB256GB/512GB
Battery5,000 mAh6,500 mAh
Charging45W wired90W wired
Rear cameras50MP main, 8MP ultra-wide, 2MP macro50MP main, 8MP ultra-wide
Dimensions163.9 × 76.5 × 7.8 mm163.1 × 77.9 × 8.2 mm
Weight180 g216 g
Water resistanceNoneIP66/IP68/IP69
Supported untilMar 2029Jun 2031

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