Spark 40 5G vs Spark 50 4G
It depends
Too close to call outright
These two are within 2 points overall, so it depends on you: keep phones for years → Spark 50 4G (supported until Apr 2029); want maximum speed → Spark 40 5G (MediaTek Dimensity 6400).
Value Score: Spark 40 5G 71 · Spark 50 4G 73 — methodology
Who should pick which
Beyond the scores — our take on each phone and the buyer it actually suits.
An entry-level 5G phone with a huge 6000mAh battery and a 120Hz screen for around $115, with estimated support to 2028.
Pick it if
- ✓ Budget 5G buyers
- ✓ Heavy-battery-life users
Skip it if
- ✗ You want a sharp display
- ✗ Fast-charge seekers
A 7000mAh endurance phone for around $100 that ships on Android 16, so even a single OS upgrade leaves it patched to roughly April 2029.
Pick it if
- ✓ Battery-life maximalists
- ✓ Field and travel use
Skip it if
- ✗ You charge in short bursts
- ✗ You need 5G
The lifespan decider
When specs are close, support length decides it — this is what each phone costs per month of safe use.
Category by category
Both displays are effectively the same class.
The Spark 40 5G's MediaTek Dimensity 6400 is simply the faster chip.
Camera systems are comparable on paper — pick by sample photos.
Battery capacities are close enough not to decide this.
The Spark 50 4G is supported until Apr 2029 — 8 months longer than the Spark 40 5G.
Pound for pound, these two are equally good deals.
Frequently asked
Is the Spark 40 5G the same as the Spark Go 5G?
In several markets it is sold as the Spark Go 5G; they share the Dimensity 6400 chip, 6000mAh battery and 6.75-inch 120Hz HD+ display.
How big is the battery?
It packs a 6000mAh battery, though charging tops out at 18W wired.
Is the Spark 50 4G still supported?
Yes. It launched in April 2026 running Android 16 with HiOS 16 and is one of Tecno's current entry models. Security patches should continue to around April 2029.
How long will the Spark 50 4G get updates?
Tecno gives no written commitment for entry Spark models. Expect about one HiOS upgrade to Android 17 and roughly three years of security patches, ending near April 2029.
Full spec table
| Spec | Spark 40 5G | Spark 50 4G |
|---|---|---|
| Price (street) | $115 | $100 |
| Display | 6.75-inch IPS LCD, HD+, 120Hz | 6.78-inch IPS LCD, HD+ (720 x 1600), 120Hz |
| Chipset | MediaTek Dimensity 6400 | MediaTek Helio G81 |
| RAM | 4GB/8GB | 4GB/6GB/8GB |
| Storage | 128GB/256GB | 128GB/256GB |
| Battery | 6,000 mAh | 7,000 mAh |
| Charging | 18W wired | 18W wired |
| Rear cameras | 50MP main | 50MP main |
| Dimensions | 167.7 × 77.9 × 8 mm | 167.8 x 79.2 x 8.2 mm |
| Weight | 194 g | 210 g |
| Water resistance | Not rated | IP64 |
| Supported until | Aug 2028 | Apr 2029 |
More comparisons
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.