Xiaomi Amazfit T-Rex vs LG K4 (K120E)
Side by side comparison between Xiaomi Amazfit T-Rex vs LG K4 devices, differences, pros, cons and full specifications. What's the better?
,
1.3"
AMOLED
AMOLED
360x360
N/A
512MB
RAM
RAM
Single-core
390
mAh
mAh
(Non removable)
vs
What's the better device? LG K4 (K120E)
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!
10 Advantages 
19 Advantages | 7 Common items in both devices |
| Plastic body, glass front |
| 16 million |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| A-GPS, GeoTagging, GLONASS / A-GPS, GeoTagging |
| + 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 | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| Change model | ||
| Model | Amazfit T-Rex | LG K4 (K120E) |
| Other model names | Mi Amazfit TRex | LG K4 K120E, LG-K120E, LGK120E |
| Country or region available |  (Global, International) |   South Africa, (Europe) |
| Brand | Xiaomi | LG |
| Release date | 1/9/2020, Announced: 1/1/2020 | 2/1/2016 |
| Depth | 13.5 millimeters (0.53 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 47.47 x 47.47 millimeters (1.87 x 1.87 in) | 66.7 x 131.9 millimeters (2.63 x 5.19 in) |
| Weight | 58 grams (2.03 ounces) | 120 grams (4.2 ounces) |
| Build, materials | Plastic body, glass front | Plastic body, glass front |
| Protection against water and others | 5 ATM: 50 meters waterproof | Not supported |
📲 Display | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| Display type | AMOLED | TFT IPS LCD |
| Screen size | 1.3" inches | 4.5" inches |
| Screen-to-body ratio | ~24.2% (screen-to-body ratio) | ~63.4% (screen-to-body ratio) |
| Display resolution | 360x360 pixels | 480x854 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 392 PPI | 218 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Not supported |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| System version | Proprietary OS | Android 5.1.1 Lollipop |
| Firmware update | feature not registered | feature not registered |
| User Interface | RTOS | feature not registered |
⚙️ Processor | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| Chipset | 32bit | 64bit: MediaTek MT6735M |
| CPU | Single-core, 1 processor: Single-core | Quad-core, 1 processor: 4x 1GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | feature not registered | ARM Mali-T720 MP1 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| RAM memory | 512MB LPDDR3 | 1GB LPDDR3 |
| Internal storage | 4GB (2GB available) eMCP | 8GB (3.88GB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | Not supported | 1 slot (Single-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | feature not registered | 150/50 Mbps |
| Network technology | feature not registered | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Not supported | Quad-Band 850/900/1800/1900 |
| Primary 2G network | Not supported | GSM 850/900/1800/1900 |
| Primary 3G network | Not supported | UMTS 850/900/1900/2100 |
| Primary 4G network | Not supported | LTE Cat4 (Bands 1, 3, 7, 8, 20) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| Back camera (main camera) | Not supported | 5 megapixels |
| Main camera resolution | Not supported | 2592x1944 pixels |
| Video recording (primary) | Not supported | HD (1280x720) 30 fps |
| Flash | Not supported | LED flash |
| Focal aperture | feature not registered | f/2.8 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Not supported | Autofocus |
| Touch focus | Not supported | Supported |
| Image stabilization | Not supported | EIS: Digital stabilization |
| Zoom | Not supported | Only digital zoom |
| Face/smile detection | Not supported | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| Front camera (secondary) | Not supported | 2 megapixels |
| Front camera resolution | Not supported | 1600x1200 pixels |
| Video recording (secondary) | Not supported | HD (1280x720) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.8 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| Loudspeaker | feature not registered | Supported |
| Active noise cancellation | Not supported | Not supported |
| Radio | Not supported | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | feature not registered | MP4, H.264, H.263, XviD |
| Audio formats | feature not registered | MP3, WAV, eAAC+, FLAC |
🔌 Connectivity | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| USB | Not supported | MicroUSB 2.0 |
| Audio output | Not supported | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 4.0 + A2DP |
| WiFi | Not supported | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| Sensors | Accelerometer Ambient light sensor Compass Heart rate Pedometer SpO2 | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) BL-49JH |
| Battery capacity | 390 mAh | 1940 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Magnetic charging (dock) | feature not registered |
| Talk time autonomy | 20 hours | 9 hours |
| Standby | 480 hours (20 days) | 500 hours (20.8 days) |
➕ Other features | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| Call control | Not supported | Voice dialing, Voice recorder |
| Messaging | SMS (T9), E-mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Not supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | feature not registered | Polyphonic and customized |
| Web browser | Not supported | HTML, XHTML, HTML5 |
| Antenna | feature not registered | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, Gray, Camouflage, Army green, Khaki • Watch band: 22mm • BioTracker PPG • 14 sports mode • AppZepp app • Compatible with Android 5.0/iOS 10 and above | • Colors: White, Blue • Flash Selfie • Knock Code |
☢️ Radiation rate | ||
| Amazfit T-Rex | LG K4 (K120E) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.604W/kg (head), 1.19W/kg (body) |