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Rivo Rhythm RX88 vs Vivo Y19s

2G Network SIM1: GSM 850 / 900 / 1800 / 1900 SIM2: GSM 850 / 900 / 1800 / 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  
3G Network WCDMA 900 / 2100 HSDPA 850 / 900 / 2100  
4G Network LTE band 1(2100), 5(850), 8(900), 40(2300)  
Dimensions 143.5 x 72 x 9.5mm 165.8 x 76.1 x 8.1 mm  
Sim Type Dual Sim, Dual Standby (Nano-SIM)  
Weight 160g 198 g  
Display Type FWVGA Display IPS LCD Capacitive Touchscreen, 16M Colors   90Hz, 1000 nits (HBM)  
Display Size 6.68 Inches   720 x 1612 Pixels (~264 PPI)  
Memory 8GB built-in 128GB Built-in, 6GB RAM, eMMC 5.1  
Card slot microSD card (supports up to 32GB) microSDXC (dedicated slot)  
RAM 1GB RAM
GPRS Yes Yes
WLAN WLAN (Wi-Fi 802.11 b/g/n) Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth v5.2 with A2DP, LE  
USB USB USB Type-C 2.0, OTG  
NFC No  
GPS Yes + A-GPS support & Glonass, BDS, GALILEO, QZSS  
Main Camera 5 MP, LED Flash, Auto-Focus, Video, Dual Camera: 50 MP, f/1.8, (wide), 1/1.95", PDAF + Auxiliary lens, Ring-LED flash   Panorama, Video (1080p@30fps)  
Front Camera 2 MP 5 MP, f/2.2  
OS Andriod OS V6.0 (Marshmallow( Android 14 OS  
Chipset Unisoc Tiger T612 (12 nm)  
Processor 1.3 GHz Quad-Core, MTK6580M Octa-core (2 x 1.8 GHz Cortex-A75 + 6 x 1.8 GHz Cortex-A55)  
GPU Mali-G57  
Sensors Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser WAP HTML5  
Sound FM Radio, 3.5mm audio jack, MP4/WMV/H.264/H.263 player, MP3/AAC/WMA/WAV player, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, Dual Speaker  
Colors Various Pearl Silver, Glossy Black, Glacier Blue  
Battery Talk-time up to 4.5 hrs 2200 mAh (Li-ion Non removable), 5500 mAh   - Battery charging 15W wired, Reverse wired  
StandBy Time Stand-by up to 11 days
TalkTime Talk-time up to 4.5 hrs 2200 mAh
Misc Dual Sim, Dual Stand-by, Google Search, Maps, Gmail, Youtube, Calendar, Auto Call Recording, Call and SMS Block, Mobile Tracker, World Clock, Social Apps TBD, Speakerphone SMS(threaded view), MMS, Email, Push Mail, IM   Glass front, plastic back, plastic frame, IP64, dust and water resistant, MIL-STD-810H compliant*, * does not guarantee ruggedness or use in extreme conditions, Document viewer, Photo/video editor