| Connectivity | 
                                                                                                  
                                                    | Bluetooth | Yes | Yes | Yes | Yes | 
                                                                                                    
                                                    | 3G | Yes | Yes | Yes | Yes | 
                                                                                                    
                                                    | 4G/LTE | Yes | Yes | Yes | Yes | 
                                                                                                    
                                                    | Radio | FM radio | FM radio | FM radio | FM radio | 
                                                                                                    
                                                    | WiFi | Yes | Yes | Yes | Yes | 
                                                                                                    
                                                    | NFC |  | Yes | Yes | No | 
                                                                                                                                                                                                            
                                                  | Camera | 
                                                                                                  
                                                    | Front Camera | 12 MP | 25 MP | 8 MP | 5 MP, f/2.2 | 
                                                                                                    
                                                    | Front Flash Light | Yes | No |  | No | 
                                                                                                    
                                                    | Front Video Recording | 1080p@30fps | 1080p@30fps, 720p@240fps | 1080p@30fps | 1080p@30fps | 
                                                                                                    
                                                    | Back Flash Light | Yes | Yes | Yes | Yes | 
                                                                                                    
                                                    | Back Camera | 16 MP | 48 MP | 13 MP | 13 MP + 2 MP | 
                                                                                                    
                                                    | Back Video Recording | 2160p@30fps, 1080p@30/60fps | 2160p@30fps, 1080p@30/60fps | 2160p@30fps, 1080p@30/60fps | 1080p@30fps | 
                                                                                                                                                                                                            
                                                  | Battery | 
                                                                                                  
                                                    | Type | Non-removable Li-Ion 5000 mAh battery | Non-removable Li-Po 4000 mAh battery | Non-removable Li-Ion 3000 mAh battery | Removable Li-Po 3000 mAh battery | 
                                                                                                                                                                                                            
                                                  | Performance | 
                                                                                                  
                                                    | Processor | Octa-core 1.8 GHz Kryo 260 | Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver) | Octa-core 2.0 GHz Cortex-A53 | Octa-core 2.0 GHz Cortex-A53 | 
                                                                                                    
                                                    | GPU | Adreno 509 | Adreno 612 | Adreno 506 | PowerVR GE8320 | 
                                                                                                                                                                                                            
                                                  | Memory | 
                                                                                                  
                                                    | Internal Memory | 64 GB | 128GB | 64 GB | 32 GB | 
                                                                                                    
                                                    | RAM | 4 GB RAM or 32 GB 3 GB RAM or 64 GB 6 GB RAM (China only) | 128GB 4GB RAM | 4 GB RAM | 2 GB | 
                                                                                                    
                                                    | Card Slot | microSD, up to 256 GB (dedicated slot) | microSD, up to 512 GB (uses shared SIM slot) | microSD, up to 256 GB | Yes | 
                                                                                                                                                                                                            
                                                  | Display | 
                                                                                                  
                                                    | Screen Size | 6.2 inches | 6.39 inches | 5.9 inches | 6.1 inches | 
                                                                                                    
                                                    | Screen Resolution | 1080 x 2246 pixels | 1080 x 2340 pixels | 720 x 1520 pixels | 720 x 1560 pixels | 
                                                                                                    
                                                    | Screen Type | LTPS IPS LCD capacitive touchscreen, 16M colors | Super AMOLED capacitive touchscreen, 16M colors | LTPS IPS LCD capacitive touchscreen, 16M colors | IPS LCD capacitive touchscreen, 16M colors | 
                                                                                                    
                                                    | Screen Protection | Corning Gorilla Glass (unspecified version) | Panda King glass | Corning Gorilla Glass (unspecified version) | No | 
                                                                                                                                                                                                            
                                                  | General Features | 
                                                                                                  
                                                    | Release Date | 2018, August | 2019, September | 2018, August | 2022-03-17 | 
                                                                                                    
                                                    | SIM Support | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) | 
                                                                                                    
                                                    | Phone Dimensions | 6.14 x 2.99 x 0.33 in | 6.22 x 2.95 x 0.35 in | 5.90 x 2.84 x 0.31 in | 155.6 x 73 x 8.5 mm | 
                                                                                                    
                                                    | Phone Weight | 205 g | 190 g | 162 g | 160 g | 
                                                                                                    
                                                    | Operating System | Android 8.1 (Oreo), planned upgrade to Android 9.0 (Pie); Android One | Android 9.0 (Pie) | Android 8.1 (Oreo), planned upgrade to Android 9.0 (Pie); Android One | Android 9.0 (Pie) |