| Product |
Vivo X21
|
Samsung Galaxy A9 Pro (2016)
|
| Battery |
| Charging |
18W wired |
18W wired |
| Music play |
- |
Up to 109 h |
| Talk time |
- |
Up to 33 h (3G) |
| Type |
Li-Ion 3200 mAh, non-removable |
Li-Ion 5000 mAh, non-removable |
| Body |
| Build |
Glass front (Gorilla Glass 3), aluminum back, aluminum frame |
Glass front (Gorilla Glass 4), glass back (Gorilla Glass 4), aluminum frame |
| Dimensions |
154.5 x 74.8 x 7.4 mm (6.08 x 2.94 x 0.29 in) |
161.7 x 80.9 x 7.9 mm (6.37 x 3.19 x 0.31 in) |
| SIM |
Nano-SIM + Nano-SIM |
Nano-SIMNano-SIM + Nano-SIM |
| Weight |
156.2 g (5.50 oz) |
210 g (7.41 oz) |
| Comms |
| Bluetooth |
5.0, A2DP, LE |
4.2, A2DP, EDR, LE |
| NFC |
No |
Yes |
| Positioning |
GPS, GLONASS |
GPS, GLONASS/ BDS (market dependant) |
| Radio |
FM radio |
FM radio, RDS, recording |
| USB |
microUSB 2.0, OTG |
microUSB 2.0 |
| 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) |
1080 x 1920 pixels, 16:9 ratio (~367 ppi density) |
| Size |
6.28 inches, 98.4 cm2 (~85.2% screen-to-body ratio) |
6.0 inches, 99.2 cm2 (~75.9% screen-to-body ratio) |
| Type |
Super AMOLED |
Super AMOLED |
| Features |
| Sensors |
Fingerprint (rear-mounted), accelerometer, proximity, compass |
Fingerprint (front-mounted), accelerometer, proximity, compass |
|
- |
ANT+
Samsung Pay (Visa, MasterCard certified) |
| Launch |
| Announced |
2018, March. Released 2018, March |
2016, March. Released 2016, May |
| Status |
Discontinued |
Discontinued |
| Main Camera |
| Dual |
|
- |
| Features |
LED flash, HDR, panorama |
LED flash, panorama, HDR |
| Single |
- |
16 MP, f/1.9, 1/2.8", AF, OIS |
| Video |
1080p@30fps |
1080p@30fps |
| Memory |
| Card slot |
microSDXC (uses shared SIM slot) |
microSDXC (dedicated slot) |
| Internal |
64GB 6GB RAM, 128GB 6GB RAM |
32GB 4GB RAM |
|
eMMC 5.1 |
eMMC 5.1 |
| Misc |
| Colors |
Black, Aurora White, Ruby Red |
White, Black, Gold |
| Models |
1725, X21A |
SM-A9100, SM-A910F, SM-A910F |
| SAR EU |
- |
|
| Network |
| 2G bands |
GSM 850 / 900 / 1800 / 1900 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G bands |
HSDPA 850 / 900 / 1900 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G bands |
1, 2, 3, 5, 8, 34, 38, 39, 40, 41 |
1, 3, 5, 7, 8, 40 |
| Speed |
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps |
HSPA 42.2/5.76 Mbps, LTE (3CA) Cat6 300/50 Mbps |
| Technology |
GSM / CDMA / HSPA / LTE |
GSM / HSPA / LTE |
|
CDMA 800 & TD-SCDMA |
1, 2, 3, 4, 5, 7, 8, 17, 28, 38, 40 -A910F/DS |
| Platform |
| Chipset |
Qualcomm SDM660 Snapdragon 660 (14 nm) |
Qualcomm MSM8976 Snapdragon 652 (28 nm) |
| CPU |
Octa-core (4x2.2 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver) |
Octa-core (4x1.8 GHz Cortex-A72 & 4x1.4 GHz Cortex-A53) |
| GPU |
Adreno 512 |
Adreno 510 |
| OS |
Android 8.1 (Oreo), Funtouch 4 |
Android 6.0.1 (Marshmallow), upgradable to Android 8.0 (Oreo), Experience UI 9 |
| Selfie camera |
| Single |
|
8 MP, f/1.9 |
| Video |
1080p@30fps |
1080p@30fps |
| Sound |
| 3.5mm jack |
Yes |
Yes |
| Loudspeaker |
Yes |
Yes |
|
32-bit/192kHz Hi-Res audio |
- |
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