Spark 40 5G vs Redmi Turbo 4 Pro

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 Redmi Turbo 4 Pro runs out in Apr 2029 ($8.92/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Spark 40 5G 72 · Redmi Turbo 4 Pro 77 — methodology

The lifespan decider

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

Tecno Spark 40 5G $115

Buy with care$4.40/mo

2025◆ Buy-by Aug 20262028

Xiaomi Redmi Turbo 4 Pro $305

Buy with care$8.92/mo

2025◆ Buy-by Apr 20272029

Category by category

Display

Spark 40 5G 70Redmi Turbo 4 Pro 80

The Redmi Turbo 4 Pro's screen is the better one — 6.83-inch amoled, 1.5k, 120hz, 3200 nits peak.

Performance

Spark 40 5G 55Redmi Turbo 4 Pro 86

The Redmi Turbo 4 Pro's Qualcomm Snapdragon 8s Gen 4 (4nm) is simply the faster chip.

Camera

Spark 40 5G 55Redmi Turbo 4 Pro 67

The Redmi Turbo 4 Pro has the stronger camera system (2 real rear lenses vs 1).

Battery

Spark 40 5G 100Redmi Turbo 4 Pro 100

Battery capacities are close enough not to decide this.

Software longevity

Spark 40 5G 31Redmi Turbo 4 Pro 41

The Redmi Turbo 4 Pro is supported until Apr 2029 — 8 months longer than the Spark 40 5G.

Value

Spark 40 5G 72Redmi Turbo 4 Pro 77

Overall value goes to the Redmi Turbo 4 Pro at $8.92 per month of safe use.

Full spec table

Spec	Spark 40 5G	Redmi Turbo 4 Pro
Price (street)	$115	$305
Display	6.75-inch IPS LCD, HD+, 120Hz	6.83-inch AMOLED, 1.5K, 120Hz, 3200 nits peak
Chipset	MediaTek Dimensity 6400	Qualcomm Snapdragon 8s Gen 4 (4nm)
RAM	4GB/8GB	12GB/16GB
Storage	128GB/256GB	256GB/512GB/1TB
Battery	6,000 mAh	7,550 mAh
Charging	18W wired	90W wired
Rear cameras	50MP main	50MP main, 8MP ultra-wide
Dimensions	167.7 × 77.9 × 8 mm	163.1 × 77.9 × 8.0 mm
Weight	194 g	219 g
Water resistance	Not rated	IP68/IP69
Supported until	Aug 2028	Apr 2029

Spark 40 5G full verdict →Redmi Turbo 4 Pro 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.