P3 Ultra 5G vs Spark 40 5G

Phone 1

Phone 2

Winner

Tecno Spark 40 5G

Lifespan decides this one: the Spark 40 5G is supported until Aug 2028 at $4.40 per month of safe use, while the P3 Ultra 5G runs out in Mar 2029 ($9.49/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: P3 Ultra 5G 74 · Spark 40 5G 72 — methodology

The lifespan decider

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

Realme P3 Ultra 5G $315

Buy with care$9.49/mo

2025◆ Buy-by Mar 20272029

Tecno Spark 40 5G $115

Buy with care$4.40/mo

2025◆ Buy-by Aug 20262028

Category by category

Display

P3 Ultra 5G 70Spark 40 5G 70

Both displays are effectively the same class.

Performance

P3 Ultra 5G 74Spark 40 5G 55

The P3 Ultra 5G's MediaTek Dimensity 8350 Ultra (4nm) is simply the faster chip.

Camera

P3 Ultra 5G 67Spark 40 5G 55

The P3 Ultra 5G has the stronger camera system (2 real rear lenses vs 1).

Battery

P3 Ultra 5G 100Spark 40 5G 100

Battery capacities are close enough not to decide this.

Software longevity

P3 Ultra 5G 40Spark 40 5G 31

The P3 Ultra 5G is supported until Mar 2029 — 7 months longer than the Spark 40 5G.

Value

P3 Ultra 5G 74Spark 40 5G 72

Pound for pound, these two are equally good deals.

Full spec table

Spec	P3 Ultra 5G	Spark 40 5G
Price (street)	$315	$115
Display	6.83-inch AMOLED, 1.5K, 120Hz, up to 1500 nits peak, Gorilla Glass 7i	6.75-inch IPS LCD, HD+, 120Hz
Chipset	MediaTek Dimensity 8350 Ultra (4nm)	MediaTek Dimensity 6400
RAM	8GB/12GB	4GB/8GB
Storage	128GB/256GB/512GB	128GB/256GB
Battery	6,000 mAh	6,000 mAh
Charging	80W wired (100% in 47 min), 5W reverse	18W wired
Rear cameras	50MP main, 8MP ultra-wide	50MP main
Dimensions	163.1 × 76.9 × 7.4 mm	167.7 × 77.9 × 8 mm
Weight	183 g	194 g
Water resistance	IP68/IP69	Not rated
Supported until	Mar 2029	Aug 2028

P3 Ultra 5G full verdict →Spark 40 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.