Product
Oppo Ace2
Oppo Ace2
Vivo X9 Plus
Vivo X9 Plus
Battery
Charging 65W wired, 100% in 30 min 40W wireless, 100% in 56 min 10W wireless reversed 18W wired
Type Li-Po 4000 mAh Li-Ion 4000 mAh, non-removable
Body
Build Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame -
Dimensions 160 x 75.4 x 8.6 mm (6.30 x 2.97 x 0.34 in) 162 x 79 x 7.5 mm (6.38 x 3.11 x 0.30 in)
SIM Nano-SIM + Nano-SIM Nano-SIM + Nano-SIM
Weight 186 g (6.56 oz) 199 g (7.02 oz)
Comms
Bluetooth 5.1, A2DP, LE, aptX HD 4.2, A2DP, LE
NFC Yes No
Positioning GPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5) GPS
Radio No No
USB USB Type-C 2.0, OTG microUSB 2.0, OTG
WLAN Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Display
Protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Resolution 1080 x 2400 pixels, 20:9 ratio (~402 ppi density) 1080 x 1920 pixels, 16:9 ratio (~375 ppi density)
Size 6.55 inches, 103.6 cm2 (~85.9% screen-to-body ratio) 5.88 inches, 95.3 cm2 (~74.5% screen-to-body ratio)
Type AMOLED, 90Hz, HDR10+, 500 nits (typ) IPS LCD
Features
Sensors Fingerprint (under display, optical), accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, proximity, compass
Launch
Announced 2020, April 13 2016, November. Released 2016, December
Status Available. Released 2020, April 20 Discontinued
Main Camera
Features LED flash, HDR, panorama LED flash, panorama, HDR
Quad 48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm, AF 2 MP B/W, (depth) 2 MP, (depth) -
Single - 16 MP, f/2.0, PDAF
Video 4K@30/60fps, 1080p@30/60/240fps; gyro-EIS 1080p@30fps
Memory
Card slot No No
Internal 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM 64GB 6GB RAM
  UFS 3.0 eMMC 5.1
Misc
Colors Aurora Silver, Moon Rock Grey, Fantasy Purple Gold, Rose Gold
Models PDHM00 -
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 900 / 1800 - SIM 1 & SIM 2
3G bands HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 34, 38, 39, 40, 41 - China 1, 3, 4, 5, 8, 38, 39, 40, 41
5G bands 1, 3, 41, 78, 79 SA/NSA - China -
Speed HSPA, LTE, 5G HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
Technology GSM / CDMA / HSPA / EVDO / LTE / 5G GSM / HSPA / EVDO / LTE
  CDMA2000 1xEV-DO CDMA2000 1xEV-DO & TD-SCDMA
Platform
Chipset Qualcomm SM8250 Snapdragon 865 5G (7 nm+) Qualcomm MSM8976 Pro Snapdragon 653 (28 nm)
CPU Octa-core (1x2.84 GHz Cortex-A77 & 3x2.42 GHz Cortex-A77 & 4x1.80 GHz Cortex-A55) Octa-core (4x1.95 GHz Cortex-A72 & 4x1.44 GHz Cortex-A53)
GPU Adreno 650 Adreno 510
OS Android 10, ColorOS 7.1 Android 6.1 (Marshmallow), upgradable to Android 8 (Oreo), Funtouch 3
Selfie camera
Dual - 20 MP, f/2.0, (wide), 1/2.8", 1.0µm 8 MP
Features HDR -
Single 16 MP, f/2.4, 29mm (wide), 1/3.06", 1.0µm -
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack No Yes
Loudspeaker Yes, with stereo speakers Yes
  - 32-bit/192kHz audio