Xiaomi Mi Note 3 (64GB) vs T-Mobile Sidekick 4G (SGH-T839)
Side by side comparison between Xiaomi Mi Note 3 vs T-Mobile Sidekick 4G phones, differences, pros, cons and full specifications. What's the better?
,
5.5"
IPS
IPS
1080x1920
12
MP
MP
16mp
6GB
RAM
RAM
Octa-core
3500
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 Mi Note 3 (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 
4 Advantages | 12 Common items in both devices |
| 16 million |
| PDAF: phase detection autofocus / Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Proximity sensor |
| +5 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 | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Model | Xiaomi Mi Note 3 (64GB) | Sidekick 4G (SGH-T839) |
| Other model names | Xiaomi Note 3 MCE8 | T-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4G |
| Country or region available |  (Global, International) |  USA |
| Brand | Xiaomi | T-Mobile |
| Release date | 9/1/2017 | 4/20/2011 |
| Depth | 7.6 millimeters (0.3 inches) | 15 millimeters (0.59 inches) |
| Size (width x height) | 74 x 152.6 millimeters (2.91 x 6.01 in) | 61 x 127 millimeters (2.4 x 5 in) |
| Weight | 163 grams (5.71 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 | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Display type | TFT IPS LCD | TFT LCD |
| Screen size | 5.5" inches | 3.5" inches |
| Screen-to-body ratio | ~73.8% (screen-to-body ratio) | ~45% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 401 PPI | 267 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 4 | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| System version | Android 7.1 Nougat | Android 2.2.1 Froyo |
| Firmware update | Android 9.0 Pie | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Chipset | 64bit: Qualcomm Snapdragon 660 SDM660 (14nm) | 32bit: Samsung Exynos 3 |
| CPU | Octa-core, 2 processors: 4x 2.2GHz Kryo 260 Gold (Quad-core) 4x 1.8GHz Kryo 260 Silver (Quad-core) | Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core) |
| GPU graphical controller | Qualcomm Adreno 512 650Mhz | PowerVR SGX540 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| RAM memory | 6GB LPDDR4X | 512MB |
| Internal storage | 64GB (51GB available) eMMC 5.1 | 1GB (350MB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 300/50 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 850/900/1700/1900/2100 | UMTS 1700/2100 |
| Primary 4G network | LTE Cat6 (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 34, 38, 39, 40, 41) | 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 | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Back camera (main camera) | (dual camera) 12 megapixels 12MP telephoto f/2.652mmAF2x-optical-zoom | 3.1 megapixels |
| Main camera resolution | 4000x3000 pixels | 2048x1536 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | VGA (720x480) 30 fps |
| Flash | Dual-LED flash | Not supported |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | 27mm (lens) | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | PDAF: phase detection autofocus | Autofocus |
| Touch focus | Supported | feature not registered |
| Image stabilization | OIS (4-axis): Optical stabilization | feature not registered |
| Zoom | Digital and optical 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 | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Front camera (secondary) | 16 megapixels | 0.3 megapixels |
| Front camera resolution | 4608x3456 pixels | 640x480 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| 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 | 1µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | feature not registered |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, XviD, MKV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| USB | USB 2.0 Type-C reversible connector | MicroUSB 2.0 |
| Audio output | Type-C reversible connector | 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, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Supported | feature not registered |
🧭 Sensors | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (front-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 3500 mAh | 1500 mAh |
| Charger, watts | 18W Wired fast charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 6.5 hours |
| Standby | feature not registered | 456 hours (19 days) |
➕ Other features | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| Call control | Voice dialing, Voice recorder | 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: Black • MIUI 10 • Quick Charge 3.0 • 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 | ||
| Xiaomi Mi Note 3 (64GB) | T-Mobile Sidekick 4G (SGH-T839) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.5W/kg (head), 1.54W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |