Quantum Sky vs Xiaomi Redmi 8A (32GB/2GB)
Side by side comparison between Quantum Sky vs Xiaomi Redmi 8A phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1080x1920
13
MP
MP
16mp
4GB
RAM
RAM
Octa-core
4010
mAh
mAh
(Non removable)
vs
6.2"
IPS
IPS
720x1520
12
MP
MP
8mp
2GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Quantum Sky
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
14 Advantages 
14 Advantages | 27 Common items in both devices |
| eMMC 5.1 |
| TFT IPS LCD |
| 60Hz |
| 16 million |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| +20 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| Change model | ||
| Model | Quantum Sky | Redmi 8A (32GB/2GB) |
| Other model names | Positivo Quantum Sky 4G 64GB, Quantum Sky QX1 | Xiaomi Redmi 8A M1908C3KG, MZB8457IN, MZB8458IN, MZB8459IN |
| Country or region available |  Brazil |   (Global, International), India |
| Brand | Quantum | Xiaomi |
| Release date | 8/29/2017 | 9/1/2019 |
| Depth | 8.3 millimeters (0.33 inches) | 9.4 millimeters (0.37 inches) |
| Size (width x height) | 76.5 x 154.5 millimeters (3.01 x 6.08 in) | 75.4 x 156.3 millimeters (2.97 x 6.15 in) |
| Weight | 182 grams (6.37 ounces) | 188 grams (6.58 ounces) |
| Build, materials | Aluminum body, glass front, aluminum back with plastic ends | Plastic body, glass front |
| Protection against water and others | Not supported | Water repellent nano-coating (don't immerse) |
📲 Display | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5.5" inches | 6.2" inches |
| Screen-to-body ratio | ~70.6% (screen-to-body ratio) | ~81.4% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 720x1520 pixels (19:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 401 PPI | 271 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 5 |
| Refresh rate | 60Hz | 60Hz |
| Display features | 2.5D glass | 400nits[typ] |
🤖 Operating System | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| System version | Android 7.0 Nougat | Android 9.0 Pie |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| Chipset | 64bit: MediaTek Helio P10 (MT6755) (28nm) | 64bit: Qualcomm Snapdragon 439 SDM439 (12nm) |
| CPU | Octa-core, 2 processors: 4x 2GHz ARM Cortex-A53 (Quad-core) 4x 1.2GHz ARM Cortex-A53 (Quad-core) | Octa-core, 2 processors: 2x 2GHz ARM Cortex-A53 (Dual-core) 6x 1.45GHz ARM Cortex-A53 (Hexa-core) |
| GPU graphical controller | ARM Mali-T860 MP2 (700MHz) | Qualcomm Adreno 505 650Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| RAM memory | 4GB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 64GB (53GB available) eMMC 5.1 | 32GB (21GB available) eMMC 5.1 |
| External storage | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 300/50 Mbps | 150/50 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Tri-Band 850/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/1800/1900 | CDMA 800 (China), GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/1900/2100 | Global, India version: UMTS 850/900/1900/2100 China version: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat6 (1, 2, 3, 4, 5, 7, 28) | LTE Cat4 VoLTE Global version: LTE (Bands 1, 2, 3, 4, 5, 7, 8, 20) TD-LTE (Bands 38, 40) India version: LTE (Bands 1, 3, 5, 8) TD-LTE (Bands 40, 41) China version: LTE (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 34, 38, 39, 40, 41) |
| Primary 5G network | Not supported | Not supported |
| 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 |
| Secondary 2G network | GSM 850/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | GPRS, EDGE |
📷 Camera | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| Back camera (main camera) | 13 megapixels | 12 megapixels |
| Main camera resolution | 4128x3096 pixels | 4000x3000 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash on both cameras | LED flash |
| Focal aperture | f/2.0 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/2.55" inches |
| Pixel size | feature not registered | 1.4µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital 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 on both cameras | HDR photo on both cameras |
| Camera extras | Sony IMX258 (back) Samsung S5K3P3 (front) | feature not registered |
📸 Front camera | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| Front camera (secondary) | 16 megapixels | 8 megapixels |
| Front camera resolution | 4608x3456 pixels | 3264x2448 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | LED | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/4" inches |
| Pixel size | feature not registered | 1.12µm pixel |
🔉 Sound and multimedia | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263 | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, OGG, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 4.2 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Pedometer Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4010 mAh | 5000 mAh |
| Charger, watts | 10W Wired charging | 18W (9V/2A) Wired fast charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 28 hours (1.2 days) | 42 hours (1.8 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Silver, Gold • Screen protector included • Silicon case included | • Colors: Midnight Black, Ocean Blue, Sunset Red • MIUI 11 • Sony IMX363 back camera sensor • Quick Charge 3.0 |
☢️ Radiation rate | ||
| Quantum Sky | Redmi 8A (32GB/2GB) | |
| 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 |