Xiaomi Redmi A3 vs Xiaomi Redmi K70 Ultra
Compare Xiaomi Redmi A3 vs Xiaomi Redmi K70 Ultra side by side: MediaTek Helio G36 vs MediaTek Dimensity 9300+ (4 nm), 5000mAh vs 5500mAh battery, $699 vs…
Xiaomi
Redmi A3
$699
1categories won
Xiaomi
Redmi K70 Ultra
$499
11categories won
1 categories tied · 13 scored in total · add a third phone
Which one wins?
Xiaomi Redmi K70 Ultra takes the overall win
The Xiaomi Redmi K70 Ultra proves superior overall against the Xiaomi Redmi A3, outperforming on gaming and photography. In camera testing, the Redmi K70 Ultra leads with superior optics, while battery endurance leans towards the Redmi K70 Ultra. Choose the Redmi K70 Ultra if you want the highest performance ceiling, or opt for the Redmi A3 if its specific hardware strengths better fit your budget.
Redmi K70 Ultra takes battery honors offering 5,500 mAh alongside 120W charging.
Redmi K70 Ultra provides greater sustained gaming output with its MediaTek Dimensity 9300+ (4 nm) and 24GB RAM.
Redmi K70 Ultra takes photography with 50MP optics.
Redmi K70 Ultra wins on budget and value at $499 compared to $699.
Category verdicts are computed algorithmically from verified technical specifications and hardware benchmarks. Rows where neither figure is objectively better — screen size preference, operating system choice, aesthetic build materials — are displayed for direct reference without scoring bias.
Redmi A3 vs Redmi K70 Ultra: specifications compared
Display
| Specification | Redmi A3 | Redmi K70 Ultra |
|---|---|---|
| Screen size | 6.71" | 6.67" |
| Resolution | 720 x 1650 | 1220 x 2712Winner |
| Pixel density | 268 ppi | 446 ppiWinner |
| Refresh rate | 90 Hz | 144 HzWinner |
| Peak brightness | 500 nits | 4000 nitsWinner |
Performance
| Specification | Redmi A3 | Redmi K70 Ultra |
|---|---|---|
| Chipset | MediaTek Helio G36 | MediaTek Dimensity 9300+ (4 nm) |
| Process node | — | 4 nm |
| AnTuTu score | 145,000 | 3,200,000Winner |
| Geekbench multi | 820 | 10800Winner |
| Maximum RAM | — | 24 GB |
| Maximum storage | — | 1TB |
Camera
| Specification | Redmi A3 | Redmi K70 Ultra |
|---|---|---|
| Main sensor | — | 50 MP |
| Rear cameras | — | 3 |
| Ultrawide | — | 8 MP |
| Selfie camera | 5 MP | 20 MPWinner |
| Max video | 1080p@30fps | 8K at 24fps |
Battery and charging
| Specification | Redmi A3 | Redmi K70 Ultra |
|---|---|---|
| Capacity | 5,000 mAh | 5,500 mAhWinner |
| Wired charging | 10 W | 120 WWinner |
| Wireless charging | No | 25 WWinner |
Design
| Specification | Redmi A3 | Redmi K70 Ultra |
|---|---|---|
| Weight | 193 gWinner | 211 g |
| Thickness | 8.3 mm | 8.39 mm |
| Water resistance | IP52 | IP68 |
| Build | — | High-strength aluminum alloy frame, Xiaomi Longjing Glass front, glass back |
Software and support
| Specification | Redmi A3 | Redmi K70 Ultra |
|---|---|---|
| Operating system | 14 | Android 14 (HyperOS) |
| OS updates | — | 4 years |
| Security updates | — | 4 years |
Connectivity and value
| Specification | Redmi A3 | Redmi K70 Ultra |
|---|---|---|
| 5G | No | Yes |
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 7 (802.11be, tri-band 2.4/5/6GHz, 320MHz bandwidth) |
| Storage expansion | microSD | None |
| 3.5mm jack | No | No |
| Launch price | $699 | $499Winner |
Xiaomi Redmi A3
The Redmi A3 brings ultra-premium circular halo camera styling and vegan leather back options to the ultra-budget category, pairing smooth 90Hz scrolling with Gorilla Glass 3 durability.
- Display
- 6.71"
- Chipset
- MediaTek Helio G36
- Battery
- 5,000mAh
- Software
- 14
Xiaomi Redmi K70 Ultra
The Xiaomi Redmi K70 Ultra captured global acclaim by equipping MediaTek’s All-Big-Core Dimensity 9300+ processor with an independent D1 graphics chip, 144Hz 4000-nit screen, IP68 water resistance, and 120W HyperCharge under $500.
- Display
- 6.67"
- Chipset
- MediaTek Dimensity 9300+ (4 nm)
- Main camera
- 50MP
- Battery
- 5,500mAh