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- Hardcase H621S vs Y51a
Energizer Hardcase H621S vs Vivo Y51a
What Hardcase H621S does better (1) and where Y51a wins (16) — every spec side by side.
vs
2.9Display4.6
3.9Camera6.5
4.0Battery4.6
6.7Features3.9
Dimensions
Size comparison
Hardcase H621SY51a
| Hardcase H621S | Y51a | Difference | |
|---|---|---|---|
| Height | 163 mm | 163.9 mm | −0.9 mm |
| Width | 78.2 mm | 75.3 mm | +2.9 mm |
| Thickness | 12 mm | 8.4 mm | +3.6 mm |
| Weight | 241 g | 188 g | +53 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Hardcase H621S better than Y51a?
- NFCYes · Y51a: No
Why is Y51a better than Hardcase H621S?
- RAM4 GB vs 8 GB2×
- Storage (max)64 GB vs 128 GB2×
- Wired charging15 W vs 18 W+20%
- Pixel density271 ppi vs 401 ppi+48%
- Weight241 g vs 188 g+28%
- Storage (base)64 GB vs 128 GB2×
- Rear cameras1 vs 22×
- Ultra-wide cameraNo · Hardcase H621S: Yes
- Max video1080p vs 4K
- Selfie camera8 MP vs 16 MP2×
- 3.5 mm headphone jackNo · Hardcase H621S: Yes
- Screen size6.2″ vs 6.6″+6%
Specifications
Side by side
| Design | ||
| Weight | 241 g | 188 g |
| Thickness | 12 mm | 8.4 mm |
| Height | 163 mm | 163.9 mm |
| Width | 78.2 mm | 75.3 mm |
| Ingress protection | IP69 | — |
| Water resistance (IPx) | IPx9 | — |
| Glass protection | Corning Gorilla Glass 3 | — |
| Colours | Black | Titanium Sapphire, Crystal Symphony |
| Display | ||
| Screen size | 6.2″ | 6.6″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 1,080 px |
| Resolution (height) | 1,520 px | 2,408 px |
| Pixel density | 271 ppi | 401 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Screen-to-body ratio | 75.3% | 84.5% |
| Performance | ||
| Chipset | Mediatek MT6762 Helio P22 | Qualcomm SM6115 Snapdragon 662 |
| Chip maker | MediaTek | Qualcomm |
| Process | 12 nm | 11 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2 GHz | 2 GHz |
| GPU | PowerVR GE8320 | Adreno 610 |
| Memory | ||
| RAM | 4 GB | 8 GB |
| Storage (max) | 64 GB | 128 GB |
| Storage (base) | 64 GB | 128 GB |
| Storage type | eMMC 5.1 | — |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 48 MP | 48 MP |
| Main camera aperture | — | f/1.8 |
| Main sensor size | — | 1/2.0" |
| Rear cameras | 1 | 2 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | Yes |
| Telephoto camera | No | No |
| Max video | 1080p | 4K |
| 4K video frame rate | — | 30 fps |
| Selfie camera | 8 MP | 16 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 5,000 mAh |
| Battery type | Li-Po | — |
| Wired charging | 15 W | 18 W |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | — |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5 | 5 |
| NFC | Yes | No |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Satellite navigation | — | GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | No | Yes |
| Fingerprint sensor | Rear | Side |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| SAR (head) | — | 0.87 W/kg |
| Software | ||
| OS at launch | Android 11 | Android 11 |
| Platform | Android | Android |
| Interface | — | Funtouch 12 |
