vivo Z1x vs Oppo K3

Phones Images
PHONES
Phone Names vivo Z1x Oppo K3
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 2100HSDPA 850 / 900 / 1900 / 2100
4G bands1, 3, 5, 8, 38, 40, 411, 3, 4, 5, 8, 38, 39, 40, 41
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / CDMA / HSPA / LTE
 -CDMA 800 & TD-SCDMA
Launch
Announced2019, September. Released 2019, September2019, May. Released 2019, May
StatusDiscontinuedDiscontinued
Body
BuildGlass front, plastic back, plastic frameGlass front (Gorilla Glass 5), plastic back, plastic frame
Dimensions159.5 x 75.2 x 8.1 mm (6.28 x 2.96 x 0.32 in)161.2 x 76 x 9.4 mm (6.35 x 2.99 x 0.37 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight189.6 g (6.70 oz)191 g (6.74 oz)
Display
Protection-Corning Gorilla Glass 5
Resolution1080 x 2340 pixels, 19.5:9 ratio (~404 ppi density)1080 x 2340 pixels, 19.5:9 ratio (~394 ppi density)
Size6.38 inches, 99.9 cm2 (~83.3% screen-to-body ratio)6.5 inches, 104.8 cm2 (~85.5% screen-to-body ratio)
TypeSuper AMOLEDAMOLED
 Always-on display-
Platform
CPUOcta-core (2x2.3 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)Octa-core (2x2.2 GHz Kryo 360 Gold & 6x1.7 GHz Kryo 360 Silver)
ChipsetQualcomm SDM712 Snapdragon 712 (10 nm)Qualcomm SDM710 Snapdragon 710 (10 nm)
GPUAdreno 616Adreno 616
OSAndroid 9.0 (Pie), upgradable to Android 10, Funtouch 10Android 9.0 (Pie), ColorOS 6
Memory
Card slotNoNo
Internal64GB 6GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM64GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
 UFS 2.1UFS 2.1
Main Camera
Dual-16 MP, f/1.7, 1/2.5", 1.12µm, PDAF Auxiliary lens
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Triple48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 13mm (ultrawide) Auxiliary lens-
Video4K@30fps, 1080p@30fps4K@30fps, 1080p@30/120fps, gyro-EIS
Selfie camera
FeaturesHDRHDR
Single32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µmMotorized pop-up 16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE, aptX5.0, A2DP, LE, aptX HD
NFCNoNo
PositioningGPS, GLONASSGPS, GLONASS, BDS
RadioFM radioFM radio
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 а/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, optical), accelerometer, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging22.5W wired 5W reverse wired20W wired
Type4500 mAh, non-removableLi-Po 3765 mAh, non-removable
Misc
ColorsFusion Blue, Phantom PurpleBlack, Nebula Purple, Morning White
Models1917, PD1921F_EXCPH1955, PCGM00
PriceAbout 220 EURAbout 210 EUR
SAR1.03 W/kg (head)     0.55 W/kg (body)-