Apple

Key Features

Display: 5.8” OLED capacitive touchscreen, 1125 x 2436 pixels, 19.5:9 ratio
Processor: iOS 13
Storage: 64GB/256GB/512GB ROM + 6GB RAM
Camera: Dual 12MP + 12MP + 12MP Rear/Dual 12MP + 3D ToF camera Front (With Quad-LED flash)
Operating System: iOS 13
SIM: Dual SIM
Battery: Non-removable Li-Ion 3190 mAh battery
Network: 4G/ 3G/ 2G
Color:
Other Features: Qi wireless charging, USB Power Delivery 3.0, Siri natural language commands and dictation, iCloud cloud service, Front/rear glass + aluminium frame (7000 series), Audio editor, water-resistant (up to 4m for 30 mins), FM Radio, A-GPS support & Glonass, BDS, GALILEO, QZSS, Bluetooth 5.0 with A2DP, LE

Display: 6.5 inches, 102.9 cm² (~83.7% screen-to-body ratio),  1242 x 2688 pixels, 19.5:9 ratio (~458 ppi density)
Processor: Hexa-core (2×2.65 GHz Lightning + 4×1.8 GHz Thunder)
Storage: 6GB RAM , 64GB, 256GB ROM
Camera: 12MP + 12MP + 12MP Triple Rear Camera, 12MP + 3D ToF Dual Camera, HDR, 2160p@24fps/30fps/60fps Videos, 1080p@30fps/60fps/120fps Videos, gyro-EIS
Operating System: iOS 13
SIM: Dual SIM
Battery: Non-removable Li-Ion 3500 mAh battery
Network: GSM / CDMA / HSPA / EVDO / LTE
Color:
Other Features: Water and Dust Resistant (IP68), Qi Wireless Charging, Fast Charging (USB Power Delivery 2.0), Video Streaming

Key Features

Display: 6.1 inch LCP Display, 828 x 1792 pixels, 19.5:9 ratio (~326 ppi)
Processor: A13 Chip
Storage:64GB, 128GB
Camera: 12MP (wide) + 12MP (ultra wide) Dual Camera, 2160p@24fps/30fps/60fps, 1080p@30fps/60fps/120fps/240fps Videos, 12MP + 3D ToF Dual Camera, 2160p@24fps/30fps/60fps, 1080p@30fps/60fps/120fps
Operating System: iOS 13 with 4GB RAM
SIM: Single SIM
Battery: Non-removable 3110 mAh Li-ion Battery
Network: 4G/ 3G/ 2G
Color:
Other Features: Face ID, WiFi 6, Glass Design, Bilateral Wireless Charging, USB 2.0, proprietary reversible connector, Bluetooth 5.0, A2DP

Key Features
Display: 4.7 inches, 60.9 cm² (~65.6% screen-to-body ratio)
Processor: Dual-core 1.84 GHz Twister
Storage: 32 GB & 128G
Camera: 12 MP, f/2.2, 29mm (standard), 1/3″, 1.22µm, PDAF- 5 MP, f/2.2, 31mm (standard)
Operating System: iOS 9, upgradable to iOS 12.1.3
SIM: Single Sim
Battery: Non-removable Li-Ion 1715 mAh battery (6.91 Wh)
Network: GSM / HSPA / LTE
Color:
Other Features: Face detection, Wi-Fi 802.11 a/b/g/n/ac, hotspot

GSM / HSPA / LTE
BODY Dimensions 158.4 x 78.1 x 7.5 mm (6.24 x 3.07 x 0.30 in)
Weight 202 g (7.13 oz)
Build Front/back glass, aluminum frame
SIM Nano-SIM
IP67 dust/water resistant (up to 1m for 30 mins)
DISPLAY Type IPS LCD capacitive touchscreen, 16M colors
Size 5.5 inches, 83.4 cm2 (~67.4% screen-to-body ratio)
Resolution 1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
Protection Ion-strengthened glass, oleophobic coating
Wide color gamut
3D Touch display & home button
PLATFORM OS iOS 11, upgradable to iOS 12.2
Chipset Apple A11 Bionic (10 nm)
CPU Hexa-core (2x Monsoon + 4x Mistral)
GPU Apple GPU (three-core graphics)
MEMORY Card slot No
Internal 64/256 GB, 3 GB RAM
MAIN CAMERA Dual 12 MP, f/1.8, 28mm (wide), OIS, PDAF
12 MP, f/2.8, 57mm (telephoto), 2x optical zoom, PDAF
Features Quad-LED dual-tone flash, HDR
Video 2160p@24/30/60fps, 1080p@30/60/120/240fps
SELFIE CAMERA Single 7 MP, f/2.2, 32mm (standard)
Features Face detection, HDR
Video 1080p@30fps