Xiaomi Redmi K30 (64GB) vs T-Mobile Sidekick 4G (SGH-T839)
Side by side comparison between Xiaomi Redmi K30 vs T-Mobile Sidekick 4G phones, differences, pros, cons and full specifications. What's the better?
,
6.67"
IPS
IPS
1080x2400
64
MP
MP
20mp
6GB
RAM
RAM
Octa-core
4500
mAh
mAh
(Non removable)
vs
3.5"
TFT
TFT
480x800
3.1
MP
MP
0.3mp
512MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
What's the better phone? Xiaomi Redmi K30 (64GB)
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!
29 Advantages 
2 Advantages | 14 Common items in both devices |
| 16 million |
| Only digital zoom |
| PDAF: phase detection autofocus / Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| +7 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 | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Model | Redmi K30 (64GB) | Sidekick 4G (SGH-T839) |
| Other model names | Xiaomi Redmi K30 (64GB + 6GB RAM), M1912G7BC, M1912G7BE | T-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4G |
| Country or region available |  (Global, International) |  USA |
| Brand | Xiaomi | T-Mobile |
| Release date | 12/1/2019 | 4/20/2011 |
| Depth | 8.79 millimeters (0.35 inches) | 15 millimeters (0.59 inches) |
| Size (width x height) | 76.6 x 165.3 millimeters (3.02 x 6.51 in) | 61 x 127 millimeters (2.4 x 5 in) |
| Weight | 208 grams (7.28 ounces) | 162 grams (5.67 ounces) |
| Build, materials | Aluminum frame, glass front/back | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Display type | TFT IPS LCD | TFT LCD |
| Screen size | 6.67" inches | 3.5" inches |
| Screen-to-body ratio | ~84.8% (screen-to-body ratio) | ~45% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI | 267 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Not supported |
| Refresh rate | 120Hz | feature not registered |
| Display features | HDR10 | feature not registered |
🤖 Operating System | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| System version | Android 10 | Android 2.2.1 Froyo |
| Firmware update | Android 11 | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Chipset | 64bit: Qualcomm Snapdragon 730G (SM7150-AB) (8nm) | 32bit: Samsung Exynos 3 |
| CPU | Octa-core, 2 processors: 2x 2.2GHz Kryo 470 Gold (Dual-core) 6x 1.8GHz Kryo 470 Silver (Hexa-core) | Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core) |
| GPU graphical controller | Qualcomm Adreno 618 (700MHz) | PowerVR SGX540 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| RAM memory | 6GB LPDDR4X | 512MB |
| Internal storage | 64GB (49GB available) UFS 2.1 | 1GB (350MB available) |
| External storage | Until 512GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 800/150 Mbps | 21/5.76 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | CDMA 800, GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/2100 | UMTS 1700/2100 |
| Primary 4G network | LTE Cat15/13 (Bands 1, 3, 5, 8) TD-LTE (Bands 34, 38, 39, 40, 41) VoLTE | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | 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 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Back camera (main camera) | (quad camera) 64 megapixels 8MP ultrawide f/2.213mm1/4.0"1.12µm 2MP macro f/2.41/5.0"1.75µm 2MP depth f/2.4 | 3.1 megapixels |
| Main camera resolution | 10120x6328 pixels | 2048x1536 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | VGA (720x480) 30 fps |
| Flash | Dual-LED flash | Not supported |
| Focal aperture | f/1.9 (aperture) | feature not registered |
| Focal length | 26mm (lens) | feature not registered |
| Sensor size | 1/1.72" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | feature not registered |
| Image stabilization | EIS: Digital stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Not supported | feature not registered |
| HDR | HDR photo on both cameras | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Front camera (secondary) | (dual front camera) 20 megapixels 2MP depth f/2.41/5"1.75µm | 0.3 megapixels |
| Front camera resolution | 5184x3840 pixels | 640x480 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | feature not registered |
| Focal length | 27mm (lens) | feature not registered |
| Sensor size | 1/3.4" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | feature not registered |
| Radio | FM (RDS) | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 3.0 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | feature not registered |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Supported | feature not registered |
🧭 Sensors | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 4500 mAh | 1500 mAh |
| Charger, watts | 27W Wired fast charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | 6.5 hours |
| Standby | feature not registered | 456 hours (19 days) |
➕ Other features | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Call control | Voice dialing, Voice recorder, Voice commands | 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, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Retractable QWERTY keyboard |
| Miscellaneous | • Colors: Blue, Red, Purple • MIUI 11, 12 • Game Turbo 2.0 • 24-bit/192kHz audio | • Colors: Matte black, Pearl magenta • 2GB microSD included • Samsung TouchWiz UI • Optical trackpad • HAC M3/T3 • T-Mobile TV • DLNA • WiFi hotspot • Java framework |
☢️ Radiation rate | ||
| Redmi K30 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| 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 |