Spark 40 5G vs Redmi A4 5G
It depends
Too close to call outright
These two are within 2 points overall, so it depends on you: keep phones for years → Redmi A4 5G (supported until Nov 2028); want maximum speed → Spark 40 5G (MediaTek Dimensity 6400).
Value Score: Spark 40 5G 72 · Redmi A4 5G 70 — methodology
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.
Performance is a wash — same chip tier.
Camera systems are comparable on paper — pick by sample photos.
6,000mAh vs 5,160mAh — the Spark 40 5G lasts longer between charges.
The Redmi A4 5G is supported until Nov 2028 — 3 months longer than the Spark 40 5G.
Pound for pound, these two are equally good deals.
Full spec table
| Spec | Spark 40 5G | Redmi A4 5G |
|---|---|---|
| Price (street) | $115 | $100 |
| Display | 6.75-inch IPS LCD, HD+, 120Hz | 6.88-inch IPS LCD, HD+, 120Hz |
| Chipset | MediaTek Dimensity 6400 | Qualcomm Snapdragon 4s Gen 2 (4nm) |
| RAM | 4GB/8GB | 4GB |
| Storage | 128GB/256GB | 64GB/128GB |
| Battery | 6,000 mAh | 5,160 mAh |
| Charging | 18W wired | 18W wired (33W charger in box) |
| Rear cameras | 50MP main | 50MP main |
| Dimensions | 167.7 × 77.9 × 8 mm | 171.88 × 77.8 × 8.22 mm |
| Weight | 194 g | 212 g |
| Water resistance | Not rated | IP52 |
| Supported until | Aug 2028 | Nov 2028 |
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.