T-Mobile Sidekick 4G (SGH-T839) vs Vivo X90 (256GB/8GB)
Side by side comparison between T-Mobile Sidekick 4G vs Vivo X90 phones, differences, pros, cons and full specifications. What's the better?
,
3.5"
TFT
TFT
480x800
3.1
MP
MP
0.3mp
512MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
vs
6.78"
AMOLED
AMOLED
1260x2800
50
MP
MP
32mp
8GB
RAM
RAM
Octa-core
4810
mAh
mAh
(Non removable)
What's the better phone? Vivo X90 (256GB/8GB)
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!
8 Common items in both devices |
Autofocus / LDAF/PDAF: laser/phase detection autofocus |
Capacitive |
Multitouch |
Accelerometer |
Ambient light sensor |
Proximity sensor |
A-GPS, GeoTagging / A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC |
+ 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 | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
Change model | ||
Model | Sidekick 4G (SGH-T839) | X90 (256GB/8GB) |
Other model names | T-Mobile Sidekick 4G T839, Samsung SGH-T839 Sidekick 4G | X90 (V2241A) |
Country or region available | USA | (Global, International) |
Brand | T-Mobile | Vivo |
Release date | 4/20/2011 | 11/30/2022, Announced: 11/22/2022 |
Depth | 15 millimeters (0.59 inches) | 8.5 millimeters (0.33 inches) |
Size (width x height) | 61 x 127 millimeters (2.4 x 5 in) | 74.4 x 164.1 millimeters (2.93 x 6.46 in) |
Weight | 162 grams (5.67 ounces) | 196 grams (6.86 ounces) |
Build, materials | feature not registered | Aluminum frame, glass front/back |
Protection against water and others | Not supported | IP65 certified: dust proof and protection from short-term exposure to water jets |
📲 Display | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
Display type | TFT LCD | AMOLED |
Screen size | 3.5" inches | 6.78" inches |
Screen-to-body ratio | ~45% (screen-to-body ratio) | ~90.9% (screen-to-body ratio) |
Display resolution | 480x800 pixels | 1260x2800 pixels (20:9) |
Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
Pixel density (dot pitch) | 267 PPI | 453 PPI |
Colors | 16 million | 1 billion |
Scratch-resistant glass | Not supported | Not supported |
Refresh rate | feature not registered | 120Hz |
Display features | feature not registered | HDR10+ 100% DCI-P3 |
🤖 Operating System | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
System version | Android 2.2.1 Froyo | Android 13 |
Firmware update | feature not registered | feature not registered |
User Interface | feature not registered | Funtouch OS (Global) Origin OS 3 (China) |
⚙️ Processor | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
Chipset | 32bit: Samsung Exynos 3 | 64bit: MediaTek Dimensity 9200 (4nm) |
CPU | Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core) | Octa-core, 3 processors: 1x 3.05GHz ARM Cortex-X3 (Single-core) 3x 2.85GHz ARM Cortex-A715 (Triple-core) 4x 1.8GHz ARM Cortex-A510 (Quad-core) |
GPU graphical controller | PowerVR SGX540 | ARM G-715 MC11 (Immortalis) |
Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
RAM memory | 512MB | 8GB LPDDR5 |
Internal storage | 1GB (350MB available) | 256GB (221GB available) UFS 4.0 |
External storage | Until 32GB microSD, microSDHC (dedicated slot) | Not supported |
📶 Mobile networks | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
Maximum Download / Upload | 21/5.76 Mbps | 2000/1024 Mbps |
Network technology | 2G, 3G | 2G, 3G, 4G, 5G |
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 | GSM 850/900/1800/1900 | CDMA 800, GSM 850/900/1800/1900 |
Primary 3G network | UMTS 1700/2100 | CDMA2000 1xEV-DO UMTS 800/850/900/1700/1900/2100 |
Primary 4G network | Not supported | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE |
Primary 5G network | Not supported | SA/NSA (1, 3, 5, 8, 28, 41, 77, 78) |
Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
Secondary 3G network | Not supported | UMTS 800/850/900/1700/1900/2100 |
Secondary 4G network | Not supported | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28) TD-LTE (34, 38, 39, 40, 41) VoLTE |
Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
📷 Camera | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
Back camera (main camera) | 3.1 megapixels | (triple camera) 50 megapixels 12MP telephoto f/2.050mm1/2.93"1.22µm2x-optical-zoom 12MP ultrawide f/2.016mm1/2.93"1.22µmAF |
Main camera resolution | 2048x1536 pixels | 8160x6120 pixels |
Video recording (primary) | VGA (720x480) 30 fps | 4K UHD (3840x2160) 60 fps |
Flash | Not supported | Dual-LED flash |
Focal aperture | feature not registered | f/1.8 (aperture) |
Focal length | feature not registered | feature not registered |
Sensor size | feature not registered | 1/1.49" inches |
Pixel size | feature not registered | 1µm pixel |
Autofocus | Autofocus | LDAF/PDAF: laser/phase detection autofocus |
Touch focus | feature not registered | Supported |
Image stabilization | feature not registered | OIS: Optical stabilization |
Zoom | Only digital zoom | Digital and optical zoom |
Face/smile detection | feature not registered | Face detection, Smile detection |
BSI sensor | feature not registered | Supported |
HDR | feature not registered | HDR photo/video on both cameras |
Camera extras | feature not registered | 4K@30/60fps 1080p@30/60fps Zeiss optics Sony IMX663, IMX866 sensors |
📸 Front camera | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
Front camera (secondary) | 0.3 megapixels | 32 megapixels |
Front camera resolution | 640x480 pixels | 6528x4896 pixels |
Video recording (secondary) | Not supported | 4K UHD (3840x2160) |
Front flash | Not supported | Not supported |
Focal aperture | feature not registered | f/2.5 (aperture) |
Focal length | feature not registered | 24mm lens |
Sensor size | feature not registered | 1/2.8" inches |
Pixel size | feature not registered | 0.8µm pixel |
🔉 Sound and multimedia | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
Loudspeaker | Supported | Stereo sound 24-bit/192kHz |
Active noise cancellation | feature not registered | 2 microphones or more |
Radio | Not supported | Not supported |
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 | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
Audio output | 3.5mm jack | Type-C reversible connector |
TV output | Not supported | USB Type-C (reversible) |
Bluetooth | 3.0 + A2DP | 5.3 + A2DP/LE |
WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
DLNA | feature not registered | Not supported |
GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC |
NFC | Not supported | Supported |
Infrared port | feature not registered | Supported |
🧭 Sensors | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor |
Vibrating alert | Supported | Supported |
🔋 Battery | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
Battery capacity | 1500 mAh | 4810 mAh |
Charger, watts | Wired charging | 120W Wired fast charging Reverse charging by cable |
Inductive / wireless charging | feature not registered | Not supported |
Talk time autonomy | 6.5 hours | feature not registered |
Standby | 456 hours (19 days) | feature not registered |
➕ Other features | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
Call control | Voice recorder | 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, Flash player | HTML, XHTML, HTML5 |
Antenna | Internal antenna | Internal antenna |
Qwerty physical keyboard | Retractable QWERTY keyboard | Not supported |
Miscellaneous | • Colors: Matte black, Pearl magenta • 2GB microSD included • Samsung TouchWiz UI • Optical trackpad • HAC M3/T3 • T-Mobile TV • DLNA • WiFi hotspot • Java framework | • Colors: Black, Red, Blue |
☢️ Radiation rate | ||
T-Mobile Sidekick 4G (SGH-T839) | Vivo X90 (256GB/8GB) | |
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 |