| Physical features | Amazon Fire Phone (32GB) | Xiaomi Redmi Note 8 Pro (64GB) |
| Model | Fire Phone (32GB) | Redmi Note 8 Pro (64GB) |
| Other model names | AT&T Amazon Fire Phone 4G LTE 32GB, Amazon FirePhone | Xiaomi Redmi Note 8 Pro M1906G7G Global version (Hybrid-sim) |
| Country or region available | 
USA | 
(Global, International) |
| Brand | Amazon | Xiaomi |
| Release date | July, 2014 | September, 2019 |
| Depth | 8.9 millimeters (0.35 inches) | 8.79 millimeters (0.35 inches) |
| Size (width x height) | 66.5 x 139.2 millimeters (2.62 x 5.48 in) | 76.4 x 161.35 millimeters (3.01 x 6.35 in) |
| Weight | 160 grams (5.6 ounces) | 200 grams (7 ounces) |
| Qwerty physical keyboard | Not supported | Not supported |
| Antenna | Internal antenna | Internal antenna |
| Build, materials | feature not registered | Plastic body, glass front/back |
| Protection against water and others | Not supported | P2i certified: water repellent nano-coating |
| System (OS) | Amazon Fire Phone (32GB) | Xiaomi Redmi Note 8 Pro (64GB) |
| Operating system | Android 4.2.2 Jelly Bean | Android 9.0 Pie |
| Firmware update | feature not registered | Android 10 |
| Hardware | Amazon Fire Phone (32GB) | Xiaomi Redmi Note 8 Pro (64GB) |
| Chipset | 32bit - Qualcomm Snapdragon 800 MSM8974 (28nm) | 64bit - MediaTek Helio G90T (12nm) |
| CPU processor | 2.2Ghz Quad-Core Krait 400 | Octa-Core, 2 processors:
2.05Ghz Dual-Core ARM Cortex-A76
2Ghz Hexa-Core ARM Cortex-A55 |
| GPU graphical controller | Qualcomm Adreno 330 | ARM Mali-G76 MC4 800Mhz |
| RAM memory | 2GB LPDDR3 | 6GB LPDDR4X |
| Internal storage | 32GB (25GB available) | 64GB (51GB available)
UFS 2.1 |
| External storage | Not supported | Until 512GB microSD, microSDXC
(hybrid slot/shares the same SIM-2 slot) |
| Display | Amazon Fire Phone (32GB) | Xiaomi Redmi Note 8 Pro (64GB) |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 4.7" inches | 6.53" inches |
| Screen-to-body ratio | ~65.8% (screen-to-body ratio) | ~84.9% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 312 PPI | 395 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 5 |
| Display features | feature not registered | 60Hz, 500 nits, HDR10 |
| Mobile networks | Amazon Fire Phone (32GB) | Xiaomi Redmi Note 8 Pro (64GB) |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card
(hybrid slot/shares the same microSD slot) |
| SIM card | 1 slot (Single-SIM)
nano-SIM (4FF) | 2 slots (Dual-SIM)
nano-SIM (4FF) |
| Maximum download/upload | 100/50 Mbps | 600/150 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| 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 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | 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 Cat12/13 (Bands 1, 2, 3, 4, 5, 7, 8, 20, 28)
TD-LTE (Bands 38, 40)
VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| 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) | Xiaomi Redmi Note 8 Pro (64GB) |
| 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) | Xiaomi Redmi Note 8 Pro (64GB) |
| Back camera (main camera) | 13 megapixels | (quad camera)
64 megapixels
8MP ultrawidef/2.213mm1/4"1.12µm
2MP macrof/2.41/5"1.75µm
2MP depthf/2.41/5"1.75µm |
| Main camera resolution | 4128x3096 pixels | 10120x6328 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.0 (aperture) | f/1.9 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | feature not registered | 1/1.7" inches |
| Pixel size | feature not registered | 0.8µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital 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) | Xiaomi Redmi Note 8 Pro (64GB) |
| Front camera (secondary) | 2.1 megapixels | 20 megapixels |
| Front camera resolution | 1920x1080 pixels | 5184x3840 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | 0.9µm pixel |
| Multimedia | Amazon Fire Phone (32GB) | Xiaomi Redmi Note 8 Pro (64GB) |
| Radio | Not supported | FM |
| 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) | Xiaomi Redmi Note 8 Pro (64GB) |
| USB | MicroUSB 2.0 | USB 2.0 Type-C reversible connector |
| TV output | Not supported | Not supported |
| Audio output | 3.5mm jack | 3.5mm jack |
| Bluetooth | 3.0 + A2DP | 5.0 + 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 | Supported |
| Other functions | Amazon Fire Phone (32GB) | Xiaomi Redmi Note 8 Pro (64GB) |
| 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 (rear-mounted)
|
| 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, White, Red, Blue, Deep Sea Blue
- MIUI 10
- 19.5:9 and HDR display
- GAME Turbo 2.0
- Google Pay
- WiFi direct, hotspot |
| Power supply | Amazon Fire Phone (32GB) | Xiaomi Redmi Note 8 Pro (64GB) |
| Battery | Li-Ion: Lithium-Ion (Non removable) | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 2400 mAh | 4500 mAh |
| Charger, watts | Standard charging | 18W 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) | Xiaomi Redmi Note 8 Pro (64GB) |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.15W/kg (head) | 1.18W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 1W/kg (head) | 1.47W/kg (body) |