| Product |
Vivo X21
|
Samsung Galaxy S7 active
|
| Battery |
| Charging |
18W wired |
15W wired, QC2
Wireless (Qi) (market dependent) |
| Music play |
- |
Up to 110 h |
| Stand-by |
- |
Up to 384 h (3G) |
| Talk time |
- |
Up to 32 h (3G) |
| Type |
Li-Ion 3200 mAh, non-removable |
Li-Ion 4000 mAh, non-removable |
| Body |
| Build |
Glass front (Gorilla Glass 3), aluminum back, aluminum frame |
Glass front (Gorilla Glass 4), plastic back, aluminum frame |
| Dimensions |
154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in) |
148.8 x 74.9 x 9.9 mm (5.86 x 2.95 x 0.39 in) |
| SIM |
Nano-SIM + Nano-SIM |
Nano-SIM |
| Weight |
156.2 g (5.50 oz) |
184.8 g (6.53 oz) |
|
- |
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
MIL-STD-810G compliant |
| Comms |
| Bluetooth |
5.0, A2DP, LE |
4.2, A2DP, LE, aptX |
| NFC |
No |
Yes |
| Positioning |
GPS, GLONASS |
GPS, GLONASS |
| Radio |
FM radio |
Stereo FM radio, RDS |
| USB |
microUSB 2.0, OTG |
microUSB 2.0, OTG |
| WLAN |
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Display |
| Protection |
Corning Gorilla Glass 3 |
Corning Gorilla Glass 4 |
| Resolution |
1080 x 2280 pixels, 19:9 ratio (~402 ppi density) |
1440 x 2560 pixels, 16:9 ratio (~576 ppi density) |
| Size |
6.28 inches, 98.4 cm2 (~85.2% screen-to-body ratio) |
5.1 inches, 71.7 cm2 (~64.3% screen-to-body ratio) |
| Type |
Super AMOLED |
Super AMOLED |
| Features |
| Sensors |
Fingerprint (rear-mounted), accelerometer, proximity, compass |
Fingerprint (front-mounted), accelerometer, gyro, proximity, compass, barometer, heart rate, SpO2 |
|
- |
ANT+
S-Voice natural language commands and dictation
Samsung Pay (Visa, MasterCard certified) |
| Launch |
| Announced |
2018, March. Released 2018, March |
2016, June. Released 2016, June |
| Status |
Discontinued |
Discontinued |
| Main Camera |
| Dual |
|
- |
| Features |
LED flash, HDR, panorama |
LED flash, auto-HDR, panorama |
| Single |
- |
|
| Video |
1080p@30fps |
4K@30fps, 1080p@30fps (gyro-EIS), 1080p@60fps, 720p@240fps, HDR, stereo sound rec., OIS |
| Memory |
| Card slot |
microSDXC (uses shared SIM slot) |
microSDXC (dedicated slot) |
| Internal |
64GB 6GB RAM, 128GB 6GB RAM |
32GB 4GB RAM |
|
eMMC 5.1 |
- |
| Misc |
| Colors |
Black, Aurora White, Ruby Red |
Camo Green, Titanium Gray, Sandy Gold |
| Models |
1725, X21A |
SM-G891A |
| SAR |
- |
|
| SAR EU |
- |
|
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 |
| 3G bands |
HSDPA 850 / 900 / 1900 / 2100 |
HSDPA 850 / 1900 / 2100 |
| 4G bands |
1, 2, 3, 5, 8, 34, 38, 39, 40, 41 |
1, 2, 3, 4, 5, 7, 8, 12, 20, 29, 30, 38, 39, 40, 41 |
| Speed |
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps |
HSPA 42.2/5.76 Mbps, LTE (3CA) Cat9 450/50 Mbps |
| Technology |
GSM / CDMA / HSPA / LTE |
GSM / HSPA / LTE |
|
CDMA 800 & TD-SCDMA |
- |
| Our Tests |
| Audio quality |
- |
Noise -94.3dB / Crosstalk -93.4dB |
| Battery (old) |
- |
Endurance rating 96h |
| Loudspeaker |
- |
Voice 72dB / Noise 66dB / Ring 78dB |
| Performance |
- |
Basemark OS II 2.0: 2487Basemark X: 32362 |
| Platform |
| Chipset |
Qualcomm SDM660 Snapdragon 660 (14 nm) |
Qualcomm MSM8996 Snapdragon 820 (14 nm) |
| CPU |
Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
Quad-core (2x2.15 GHz Kryo & 2x1.6 GHz Kryo) |
| GPU |
Adreno 512 |
Adreno 530 |
| OS |
Android 8.1 (Oreo), Funtouch 4 |
Android 6.0 (Marshmallow), upgradable to 7.0 (Nougat), TouchWiz UI |
| Selfie camera |
| Features |
- |
HDR |
| Single |
|
|
| Video |
1080p@30fps |
|
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
|
32-bit/192kHz Hi-Res audio |
- |
