Infinix Zero Ultra vs Infinix Smart 20 HD
Infinix Zero Ultra wins clearly over Infinix Smart 20 HD — 6.1 overall against 5.1. The Infinix Zero Ultra launched in 2022; the Infinix Smart 20 HD in 2026. Infinix Smart 20 HD has the bigger battery — 5,000 mAh against 4,500 mAh.
Infinix Zero Ultra: Specifications are still being confirmed — scores appear as data is verified.
Infinix Smart 20 HD: Limited confirmed specifications — categories without real data are not scored.
Overall winner
Infinix Zero Ultra
6.1/ 10 — Average
$420≈ €375 · ≈ £313≈ converted at today's rate · Buy on Amazon
Full specs & details
Infinix Smart 20 HD
5.1/ 10 — Below average
Check price on Amazon.com · Amazon.de · Amazon.co.uk
Full specs & detailsKey highlights
| Highlight | Infinix Zero Ultra | Infinix Smart 20 HD |
|---|---|---|
| Processor | MediaTek Dimensity 920 (6 nm) | Unisoc T7250 (12 nm) |
| Display | 6.8″ · OLED · 120 Hz | 6.67″ · IPS LCD · 120 Hz |
| Main camera | — | 8 MP wide (f/2, 1/4.0", 1.12µm) |
| Battery | 4,500 mAh · 180W charging | 5,000 mAh · 15W charging |
| RAM / Storage | — | 3GB / 64GB |
Which is better?
- Infinix Zero Ultra wins clearly over Infinix Smart 20 HD — 6.1 overall against 5.1.
- Infinix Zero Ultra takes 3 of the 5 categories both phones are scored in.
- Infinix Smart 20 HD has the bigger battery — 5,000 mAh against 4,500 mAh.
- Infinix Zero Ultra charges faster — 180W wired against 15W.
Category scores
| Category | Infinix Zero Ultra | Infinix Smart 20 HD |
|---|---|---|
| Performance | 4.6Better | 3.6 |
| Display | 6.9Better | 5.3 |
| Battery | 7.8Better | 6.7 |
| Software | 5.8Tie | 6.0Tie |
| Audio | 5.4 | 7.3Better |
| Camera | — | 3.4 |
| Design & Build | — | 6.2 |
| Call Quality | — | 6.3 |
Open the interactive comparisonRadar chart, winner highlights and a differences-only view.
Reasons to consider
Infinix Zero Ultra
- Faster charging (180W vs 15W)
- Larger display (6.8″ vs 6.67″)
Infinix Smart 20 HD
- Bigger battery (5,000 mAh vs 4,500 mAh)
Full specifications side by side
| Specification | Infinix Zero Ultra | Infinix Smart 20 HD |
|---|---|---|
| Launch | ||
| Launch status | Available | Available |
| Release date | 2022 | 6 Oct 2026 |
| Platform | ||
| OS | Android | Android |
| OS version | Android 12 (XOS 12) | Android 15, XOS 15.1 |
| Chipset | Dimensity 920 | — |
| Chipset (as published) | MediaTek Dimensity 920 (6 nm) | Unisoc T7250 (12 nm) |
| CPU | Octa-core (2×2.5 GHz Cortex-A78 & 6×2.0 GHz Cortex-A55) | Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55) |
| GPU | Mali-G68 MC4 | Mali-G57 MP1 |
| Infinix Zero Ultra wins narrowly on Performance (4.6 vs 3.6) | ||
| Display | ||
| Display size | 6.8″ | 6.67″ |
| Panel type | OLED | IPS LCD |
| Refresh rate | 120 Hz | 120 Hz |
| Brightness (peak) | 900 nits | 700 nits |
| Display protection | Corning Gorilla Glass 3 | — |
| Resolution | — | 720 × 1,600 pixels |
| Infinix Zero Ultra wins clearly on Display (6.9 vs 5.3) | ||
| Battery | ||
| Battery capacity | 4,500 mAh | 5,000 mAh |
| Wired charging | 180W | 15W |
| Infinix Zero Ultra wins clearly on Battery (7.8 vs 6.7) | ||
| Body & build | ||
| Colours | Coslight Silver, Genesis Noir | Night Pulse, Silver Dancer, Sunlike Orange |
| Dimensions | — | 165.6 × 77 × 8.3 mm |
| Materials | — | Glass, Plastic |
| SIM | — | Nano-SIM + Nano-SIM |
| Connectivity | ||
| Bluetooth | Bluetooth 5 | — |
| NFC | No | Yes |
| USB | USB Type-C 2.0, OTG support | USB Type-C 2.0, OTG |
| Positioning | GPS | GPS |
| Audio | ||
| 3.5mm jack | No | Yes |
| Loudspeaker | — | Stereo |
| Features | ||
| Sensors | Accelerometer, Gyroscope, Proximity, Compass | Accelerometer, Proximity, Compass |
| Fingerprint | — | Side-mounted |
| Camera | ||
| Front cameras | 32 MP (f/2) | 8 MP wide (f/2, 1/4.0", 1.12µm) |
| Rear cameras | — | 8 MP wide (f/2, 1/4.0", 1.12µm) |
| Video (max) | — | 1440p@30fps |
| Memory | ||
| Memory variants (RAM/storage) | — | 3 GB RAM + 64 GB |
| Card slot | — | Dedicated slot |
| Network | ||
| Network technologies | — | 2G, 3G, 4G |
| Additional specifications | ||
| Connectivity · Infrared | No | Yes |
| Connectivity · Radio | FM Radio | FM radio |
| Misc · Models | X6820 | X6725 |
| Main Camera · Features | OIS, Dual Pixel PDAF, HDR, Panorama, Dual LED Flash, 4K Video | Dual-LED flash, panorama |
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