PhoneLifespan

Phone (3a) vs 13R

vs

It depends

Too close to call outright

These two are within 2 points overall, so it depends on you: keep phones for years → Phone (3a) (supported until Mar 2031); want maximum speed → 13R (Snapdragon 8 Gen 3).

Value Score: Phone (3a) 75 · 13R 77 methodology

The lifespan decider

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

Nothing Phone (3a) $349
Safe to buy$6.18/mo
2025◆ Buy-by Mar 20292031
OnePlus 13R $549
Safe to buy$10.05/mo
2025◆ Buy-by Jan 20292031

Category by category

Display
Phone (3a) 8013R 90

The 13R's screen is the better one — 6.78-inch ltpo 4.1 amoled proxdr, 2780×1264 (450 ppi), 1–120hz, up to 4500 nits peak.

Performance
Phone (3a) 6413R 92

The 13R's Snapdragon 8 Gen 3 is simply the faster chip.

Camera
Phone (3a) 7913R 79

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

Battery
Phone (3a) 8013R 100

6,000mAh vs 5,000mAh — the 13R lasts longer between charges.

Software longevity
Phone (3a) 6713R 65

Both phones' support windows end around the same time.

Value
Phone (3a) 7513R 77

Pound for pound, these two are equally good deals.

Full spec table
SpecPhone (3a)13R
Price (street)$349$549
Display6.77-inch AMOLED, 1080×2392 (FHD+), up to 120Hz, 3000 nits peak6.78-inch LTPO 4.1 AMOLED ProXDR, 2780×1264 (450 ppi), 1–120Hz, up to 4500 nits peak
ChipsetSnapdragon 7s Gen 3Snapdragon 8 Gen 3
RAM8GB/12GB12GB
Storage128GB/256GB256GB
Battery5,000 mAh6,000 mAh
Charging50W wired, no wireless80W SUPERVOOC wired (55W in North America), no wireless
Rear cameras50MP main, 50MP telephoto 2x, 8MP ultra-wide50MP main, 50MP telephoto 2x, 8MP ultra-wide
Dimensions163.52 × 77.50 × 8.35 mm161.7 × 75.8 × 8.0 mm
Weight201 g206 g
Water resistanceIP64IP65
Supported untilMar 2031Jan 2031

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