Product
Vivo T2x
Vivo T2x
Samsung Galaxy J7 Duo
Samsung Galaxy J7 Duo
Battery
Charging 44W wired -
Type 6000 mAh Li-Ion 3000 mAh, removable
Body
Build Glass front, plastic frame, plastic back -
Dimensions 163.9 x 75.3 x 9.2 mm (6.45 x 2.96 x 0.36 in) 153.5 x 77.2 x 8.2 mm (6.04 x 3.04 x 0.32 in)
SIM Nano-SIM + Nano-SIM Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
Weight 202.8 g (7.16 oz) 174 g (6.14 oz)
Comms
Bluetooth 5.2, A2DP, LE, aptX HD 4.2, A2DP, LE
NFC Yes No
Positioning GPS, GLONASS, GALILEO, BDS, QZSS GPS, GLONASS, BDS
Radio No FM radio
USB USB Type-C, 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
Resolution 1080 x 2408 pixels, 20:9 ratio (~401 ppi density) 720 x 1280 pixels, 16:9 ratio (~267 ppi density)
Size 6.58 inches, 104.3 cm2 (~84.5% screen-to-body ratio) 5.5 inches, 83.4 cm2 (~70.4% screen-to-body ratio)
Type IPS LCD, 144Hz, 650 nits (HBM) Super AMOLED
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, proximity, compass Fingerprint (front-mounted), accelerometer, proximity
  - ANT+
Launch
Announced 2022, May 30 2018, April. Released 2018, April
Status Available. Released 2022, May 31 Discontinued
Main Camera
Dual 50 MP, f/1.8, 26mm (wide), PDAF 2 MP, f/2.4, (macro) 13 MP, f/1.9, AF 5 MP, f/1.9, (depth)
Features Dual-LED dual-tone flash, HDR, panorama LED flash, panorama, HDR
Video 4K@30fps, 1080p@30/60fps, gyro-EIS 1080p@30fps
Memory
Card slot No microSDXC (dedicated slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM 32GB 3GB RAM, 32GB 4GB RAM
  UFS 3.1 eMMC 5.1
Misc
Colors Black, Blue Black, Gold, Rose Gold, White, Blue
Models - SM-J720F, SM-J720F/DS, SM-J720M, SM-J720M/DS
SAR EU - 0.54 W/kg (head)     1.40 W/kg (body)    
Network
2G bands GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 2100 HSDPA 850 / 900 / 1900 / 2100 - International
4G bands 1, 3, 5, 8, 28, 34, 38, 39, 40, 41 1, 3, 5, 7, 8, 20, 38, 40, 41 - International
5G bands 1, 5, 8, 28, 41, 77, 78 SA/NSA -
Speed HSPA, LTE, 5G HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Technology GSM / CDMA / HSPA / CDMA2000 / LTE / 5G GSM / HSPA / LTE
  CDMA2000 1x 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 28, 38, 40, 41, 66 - USA
Platform
Chipset Mediatek Dimensity 1300 (6 nm) Exynos 7885 (14 nm)
CPU Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55) Octa-core (2x2.2 GHz Cortex-A73 & 6x1.6 GHz Cortex-A53)
GPU Mali-G77 MC9 Mali-G71
OS Android 12, OriginOS 2.0 Android 8.0 (Oreo), upgradable to Android 9.0 (Pie)
Selfie camera
Features - LED flash
Single 16 MP, f/2.0, (wide) 8 MP, f/1.9
Video 1080p@30fps 1080p@30fps
Sound
3.5mm jack Yes Yes
Loudspeaker Yes Yes