📱 Model features |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| Model | Lumia 830 (RM-983) | Redmi K30S (256GB) |
| Other model names | AT&T Nokia Lumia 830 4G RM-983, Nokia Tesla | Xiaomi Redmi K30S 5G M2007J3SC |
| Country or region available | 
USA | 
China |
| Brand | Nokia | Xiaomi |
| Release date | 9/1/2014 | 10/27/2020 |
| Depth | 8.5 millimeters (0.33 inches) | 9.33 millimeters (0.37 inches) |
| Size (width x height) | 70.7 x 139.4 millimeters (2.78 x 5.49 in) | 76.4 x 165.1 millimeters (3.01 x 6.5 in) |
| Weight | 150 grams (5.25 ounces) | 216 grams (7.56 ounces) |
| Build, materials | feature not registered | Aluminum frame, glass front/back |
| Protection against water and others | Not supported | Not supported |
🤖 Operating System |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| System version | Windows Phone 8.1 | Android 10 |
| Firmware update | Windows 10 Mobile | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| Chipset | 32bit - Qualcomm Snapdragon 400 MSM8926 (28nm) | 64bit - Qualcomm Snapdragon 865 (SM8250) (7nm) |
| CPU | Quad-Core, 1 processor:
1.2GHz Quad-Core ARM Cortex-A7 | Octa-Core, 3 processors:
2.84GHz Single-Core Kryo 585
2.42GHz Triple-Core Kryo 585
1.8GHz Quad-Core Kryo 585 |
| GPU graphical controller | Qualcomm Adreno 305 400Mhz | Qualcomm Adreno 650 (250-587MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| RAM memory | 1GB LPDDR2 | 8GB LPDDR5 |
| Internal storage | 16GB (14GB available) | 256GB (230GB available)
UFS 3.1 |
| External storage | Until 256GB microSD, microSDXC
(dedicated slot) | Not supported |
📲 Display |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5" inches | 6.67" inches |
| Screen-to-body ratio | ~69.9% (screen-to-body ratio) | ~85.2% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 294 PPI | 395 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 5 |
| Display features | feature not registered | 144Hz, 500nits[typ]
HDR10 |
📶 Mobile networks |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| 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 | 150/50 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 850/900/1900/2100 | CDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat4 700/850/1700/1900 (Bands 2,4,5,17) | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17)
TD-LTE (34, 38, 39, 40, 41)
VoLTE |
| Primary 5G network | Not supported | SA/NSA (1, 3, 41, 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 |
📷 Camera |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| Back camera (main camera) | 10.1 megapixels | (triple camera)
64 megapixels
13MP ultrawidef/2.4123°1.12µm
5MP macrof/2.4AF |
| Main camera resolution | 3840x2640 pixels | 10120x6328 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | 8K UHD (7680x4320) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.2 (aperture) | f/1.9 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | 1/3.4" inches | 1/1.73" inches |
| Pixel size | feature not registered | 0.8µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | feature not registered | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | feature not registered |
📸 Front camera |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| Front camera (secondary) | 1 megapixels | 20 megapixels |
| Front camera resolution | 1280x720 pixels | 5184x3840 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | 27mm lens |
| Sensor size | feature not registered | 1/3.4" inches |
| Pixel size | feature not registered | 0.8µm pixel |
🔉 Sound and multimedia |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C jack with 3.5mm jack adapter |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 4.0 + A2DP | 5.1 + A2DP/LE |
| WiFi | 802.11 b/g/n (2.4Ghz) | 802.11 a/b/g/n/ac/ax wifi6 (2.4Ghz, 5Ghz) + MIMO
WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC |
| NFC | Supported | Supported |
| Infrared port | Not supported | Supported |
🧭 Sensors |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| Sensors | Accelerometer
Ambient Light sensor
Compass
Gyroscope
Proximity sensor | Accelerometer
Ambient Light sensor
Compass
Face unlock
Fingerprint sensor (side-mounted)
Gyroscope
Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| Battery type | Li-Ion: Lithium-Ion (Removable)
BV-L4A | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 2200 mAh | 5000 mAh |
| Charger, watts | Standard charging | 33W Fast battery charging
Quick Charge 4+
USB Power Delivery 3.0 |
| Talk time autonomy | 15 hours | feature not registered |
| Standby | 530 hours (22.1 days) | feature not registered |
➕ Other features |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| 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: Black, Orange, Green, White
- Lumia Denim UI
- Nokia ClearBlack Display
- Dolby Digital Plus sound enhancement
- Carl Zeiss optics
- 15GB OneDrive
- Qi wireless charging
- WiFi hotspot | - Colors: Cosmic Black, Lunar Silver
- MIUI 12
- Silicone Case included
- Screen protector included
- Dual stereo speakers
- 24-bit/192kHz audio
- Mi Pay |
☢️ Radiation rate |
| Nokia Lumia 830 (RM-983) | Xiaomi Redmi K30S (256GB) |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.87W/kg (head), 0.83W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.46W/kg (head), 0.59W/kg (body) | feature not registered |