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- Redmi Note 15 4G vs Z-Ultra
Xiaomi Redmi Note 15 4G vs ZEED Z-Ultra
What Redmi Note 15 4G does better (7) and where Z-Ultra wins (6) — every spec side by side.
vs
8.5Display7.6
6.4Camera6.8
7.8Battery6.0
5.8Features6.8
Dimensions
Size comparison
Redmi Note 15 4GZ-Ultra
| Redmi Note 15 4G | Z-Ultra | Difference | |
|---|---|---|---|
| Height | 164 mm | 162.2 mm | +1.8 mm |
| Width | 75.4 mm | 75.3 mm | +0.1 mm |
| Thickness | 7.9 mm | 8 mm | −0.1 mm |
| Weight | 184 g | 190 g | −6 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Redmi Note 15 4G better than Z-Ultra?
- Peak brightness3,200 nits vs 800 nits4×
- Storage (max)512 GB vs 256 GB2×
- Battery capacity6,000 mAh vs 5,000 mAh+20%
- Memory card slotYes · Z-Ultra: No
- Weight184 g vs 190 g+3%
- Main camera aperturef/1.7 vs f/1.9+12%
- Screen-to-body ratio89.7% vs 87.9%+2%
Why is Z-Ultra better than Redmi Note 15 4G?
- 5GNo · Redmi Note 15 4G: Yes
- Selfie camera20 MP vs 50 MP2.5×
- Storage (base)128 GB vs 256 GB2×
- 3.5 mm headphone jackNo · Redmi Note 15 4G: Yes
- CPU frequency2.2 GHz vs 2.5 GHz+14%
- Process6 nm vs 4 nm+50%
Specifications
Side by side
| Design | ||
| Weight | 184 g | 190 g |
| Thickness | 7.9 mm | 8 mm |
| Height | 164 mm | 162.2 mm |
| Width | 75.4 mm | 75.3 mm |
| Frame | Plastic | Aluminium |
| Back | Plastic | Plastic |
| Ingress protection | IP64 | IP64 |
| Water resistance (IPx) | IPx4 | IPx4 |
| Glass protection | Gorilla Glass 5 | Panda Glass |
| Colours | Black, Forest Green, Glacier Blue, Purple | Gold, Black |
| Display | ||
| Screen size | 6.8″ | 6.7″ |
| Panel | AMOLED | AMOLED |
| OLED panel | Yes | Yes |
| Resolution (width) | 1,080 px | 1,080 px |
| Resolution (height) | 2,392 px | 2,400 px |
| Pixel density | 388 ppi | 395 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 3,200 nits | 800 nits |
| Measured brightness | 1,144 nits | — |
| Screen-to-body ratio | 89.7% | 87.9% |
| HDR | Yes | — |
| Performance | ||
| Chipset | Mediatek Helio G100 Ultra | Mediatek Dimensity 7300 |
| Chip maker | MediaTek | MediaTek |
| Process | 6 nm | 4 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.2 GHz | 2.5 GHz |
| GPU | Mali-G57 MC2 | Mali-G615 MC2 |
| AnTuTu score | 581,234 | — |
| Geekbench 6 (multi-core) | 1,705 | — |
| Memory | ||
| RAM | 8 GB | 8 GB |
| Storage (max) | 512 GB | 256 GB |
| Storage (base) | 128 GB | 256 GB |
| Storage type | UFS 2.2 | UFS 2.2 |
| Memory card slot | Yes | No |
| Camera | ||
| Main camera | 108 MP | 108 MP |
| Main camera aperture | f/1.7 | f/1.9 |
| Main sensor size | 1/1.67" | 1/1.67" |
| Rear cameras | 1 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 20 MP | 50 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 6,000 mAh | 5,000 mAh |
| Battery type | Li-Po | Li-Ion |
| Wired charging | 33 W | 33 W |
| Charged in 30 min | 38% | — |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | Yes |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5.3 | 5.4 |
| NFC | Yes | Yes |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Infrared port | Yes | — |
| Satellite navigation | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | Yes | Yes |
| 3.5 mm headphone jack | No | Yes |
| Fingerprint sensor | Under display | Under display |
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, compass, proximity | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| SAR (head) | 0.98 W/kg | — |
| Software | ||
| OS at launch | Android 15 | Android 16 |
| Platform | Android | Android |
| Interface | HyperOS 2 | — |
| Major OS updates promised | 4 | — |
| EU label | ||
| Energy class | B | — |
| Battery charge cycles | 1,000 | — |
| Endurance per cycle | 55 h | — |
| Repairability class | C | — |
| Drop resistance class | A | — |
