Physical features | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Model | Fire Phone (32GB) | X50 Pro+ (256GB/8GB) |
Other model names | AT&T Amazon Fire Phone 4G LTE 32GB, Amazon FirePhone | vivo X50 Pro Plus V2011A (256GB + 8GB RAM) |
Country or region available |  USA |  China |
Brand | Amazon | Vivo |
Release date | July, 2014 | July, 2020 |
Depth | 8.9 millimeters (0.35 inches) | 8.8 millimeters (0.35 inches) |
Size (width x height) | 66.5 x 139.2 millimeters (2.62 x 5.48 in) | 73 x 158.5 millimeters (2.87 x 6.24 in) |
Weight | 160 grams (5.6 ounces) | 192 grams (6.72 ounces) |
Qwerty physical keyboard | Not supported | Not supported |
Antenna | Internal antenna | Internal antenna |
Build, materials | feature not registered | Aluminum frame, glass front/back |
Protection against water and others | Not supported | Not supported |
System (OS) | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Operating system | Android 4.2.2 Jelly Bean | Android 10 |
Firmware update | feature not registered | feature not registered |
Hardware | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Chipset | 32bit - Qualcomm Snapdragon 800 MSM8974 (28nm) | 64bit - Qualcomm Snapdragon 865 SM8250 (7nm) |
CPU processor | 2.2Ghz Quad-Core Krait 400 | Octa-Core, 3 processors: 2.84Ghz Single-Core Kryo 585 2.42Ghz 3-Cores Kryo 585 1.8Ghz Quad-Core Kryo 585 |
GPU graphical controller | Qualcomm Adreno 330 | Qualcomm Adreno 650 587Mhz |
RAM memory | 2GB LPDDR3 | 8GB LPDDR4X |
Internal storage | 32GB (25GB available) | 256GB (230GB available) UFS 2.1 |
External storage | Not supported | Not supported |
Display | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Display type | TFT IPS LCD | AMOLED |
Screen size | 4.7" inches | 6.56" inches |
Screen-to-body ratio | ~65.8% (screen-to-body ratio) | ~90.4% (screen-to-body ratio) |
Display resolution | 720x1280 pixels | 1080x2376 pixels |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 312 PPI | 398 PPI |
Colors | 16 million | 16 million |
Scratch-resistant glass | Gorilla Glass 3 | Not supported |
Display features | feature not registered | 120Hz, HDR10+ |
Mobile networks | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
Maximum download/upload | 100/50 Mbps | 2000/150 Mbps |
Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
Frequency, bands | Expand band detailsCollapse details |
GSM Mhz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
Primary 2G network | GSM 850/900/1800/1900 | CDMA 800, GSM 850/900/1800/1900 |
Primary 3G network | UMTS 850/900/1700/1900/2100 | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1700/1900/2100 |
Primary 4G network | LTE Cat3 700/800/850/900/1700/1800/1900/2100/2600 (Bands 1,2,3,4,5,7,8,17,20) | LTE Cat6 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41) VoLTE |
Primary 5G network | Not supported | SA/NSA (1, 3, 41, 77, 78, 79) |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, 5G SA/NSA |
Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
Secondary 3G network | Not supported | Not supported |
Secondary 4G network | Not supported | Not supported |
Secondary data network | Not supported | GPRS, EDGE |
Calling | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
Speakerphone | Supported | Supported |
Video calling | Supported | Supported |
Call control | Voice recorder | Voice dialing, Voice recorder, Voice commands |
Camera | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Back camera (main camera) | 13 megapixels | (quad camera) 50 megapixels 32MP telephotof/2.150mm1/2.8"0.8µmPDAF2x-optical-zoom 13MP periscope telephotof/3.0135mm1/3.1"1.12µmPDAFOIS5x-optical-zoom 13MP ultrawidef/2.2120º16mm1/3.4"1.0µm |
Main camera resolution | 4128x3096 pixels | 8160x6120 pixels |
Video recording (primary) | Full HD (1920x1080) 30 fps | 8K UHD (7680x4320) 24 fps |
Flash | LED flash | Dual-LED flash |
Focal aperture | f/2.0 (aperture) | f/1.9 (aperture) |
Focal length | feature not registered | feature not registered |
Sensor size | feature not registered | 1/1.31" inches |
Pixel size | feature not registered | 1.2µm pixel |
Autofocus | Autofocus | PDAF: phase detection autofocus |
Touch focus | Supported | Supported |
Image stabilization | OIS: Optical stabilization | OIS: Optical stabilization |
Zoom | Only digital zoom | Digital and optical zoom |
Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
BSI sensor | Not supported | Not supported |
HDR | HDR photo only main camera | HDR photo on both cameras |
2ª camera | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Front camera (secondary) | 2.1 megapixels | 32 megapixels |
Front camera resolution | 1920x1080 pixels | 6528x4896 pixels |
Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
Front flash | Not supported | Not supported |
Focal aperture | feature not registered | feature not registered |
Focal length | feature not registered | feature not registered |
Sensor size | feature not registered | feature not registered |
Pixel size | feature not registered | feature not registered |
Multimedia | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Radio | Not supported | Not supported |
TV | Not supported | Not supported |
Video formats | MP4, H.264, H.263 | MP4, H.265, H.264, H.263, XviD, MKV |
Audio formats | MP3, WAV, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
Connectivity | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
TV output | Not supported | USB Type-C (reversible) |
Audio output | 3.5mm jack | Type-C reversible connector |
Bluetooth | 3.0 + A2DP | 5.1 + A2DP/LE |
WiFi | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) | 802.11 a/b/g/n/ac (2.4Ghz, 5Ghz) + MIMO |
DLNA | Not supported | Not supported |
NFC | Supported | Supported |
GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
Infrared port | Not supported | Not supported |
Other functions | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Active noise cancellation | Supported | Supported |
Vibrating alert | Supported | Supported |
Ringtones | Polyphonic and customized | Polyphonic and customized |
Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
Sensors | Accelerometer Proximity sensor Compass Ambient Light sensor Gyroscope Barometer
| Accelerometer Proximity sensor Compass Ambient Light sensor Gyroscope Face unlock Fingerprint sensor (under display)
|
Other features | - Colors: Black - Amazon Fire OS 3.5 UI - Corning Gorilla Glass 3 (front and back) - 3D Dynamic Perspective UI (based on 4 front cameras) - System wide tilt, auto-scroll, swivel and peek functions - Dolby Digital Plus sound enhancement - Unlimited Cloud Drive photo storage - Firefly technology - WiFi hotspot | - Colors: Black, Blue, Brown - Funtouch 10.5 - 32-bit/192kHz audio - WiFi direct, hotspot |
Power supply | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
Battery | Li-Ion: Lithium-Ion (Non removable) | LiPo: Li-Ion polymer (Non removable) |
Battery capacity | 2400 mAh | 4350 mAh |
Charger, watts | Standard charging | 44W Fast battery charging |
Talk time autonomy | 1320 minutes | 22 hours | 0.9 day | feature not registered |
Standby | 17100 minutes | 285 hours | 11.9 days | feature not registered |
Radiation rate | Amazon Fire Phone (32GB) | Vivo X50 Pro+ (256GB/8GB) |
SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |