In depth comparison and review of ASUS ZenFone Zoom (ZX551ML) and TCL 20SE. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZX551ML | T671H | |
| Form Factor | Touch | Touch | |
| Height | 158.9 mm | 172.08 mm | TCL 20SE has greater height than ASUS ZenFone Zoom (ZX551ML). |
| Width | 78.8 mm | 77.14 mm | ASUS ZenFone Zoom (ZX551ML) has greater width than TCL 20SE. |
| Depth | 12 mm | 9.1 mm | TCL 20SE is narrower than ASUS ZenFone Zoom (ZX551ML). |
| Weight | 185 g | 206 g | ASUS ZenFone Zoom (ZX551ML) is lighter than ASUS ZenFone Zoom (ZX551ML). |
| Body Colour | Ceramic white | Pure black | Nuit black | Aurora green | |
| Body Material | - | Polycarbonate, polymethyl methacrylate (PMMA) | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.432 W/kg (body), 0.343 W/kg (head) | 1.43 W/kg (body), 0.81 W/kg (head), 3.12 W/kg (limb) | |
| Integrated Components | - | FM radio, LED flashlight | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | - | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | IPS | |
| Screen Size (Display Size) | 5.5" | 6.82" | TCL 20SE has larger screen size than ASUS ZenFone Zoom (ZX551ML). |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1640 x 720 pixels | ASUS ZenFone Zoom (ZX551ML) has better screen resolution than TCL 20SE. |
| Display Format | Full HD | HD+ | |
| Pixel Density | 401 ppi | 263 ppi | ASUS ZenFone Zoom (ZX551ML) has better pixel density than TCL 20SE. |
| Aspect Ratio | - | 20.5:9 | |
| Max Brightness | - | 450 cd/m² | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Contrast Ratio | - | 1500:1 | |
| Display Enhancement Technology | - | Eye comfort mode, SDR-to-HDR colour enhancement | |
| Display Features | - | 2.5D Glass, Sunlight Display, Reading mode, Dark mode, CinemaVision display, V-notch display, TCL NXTVISION | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 4 (scratch resistant glass) | Fingerprint-resistant coating |
| PROCESSOR | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| Processor Type (CPU) | Intel Atom | Qualcomm Snapdragon 460 | |
|---|---|---|---|
| Processor Number | Z3590 | - | |
| Clock Speed | 2.5 GHz | 1.8 GHz | ASUS ZenFone Zoom (ZX551ML) has higher clock speed than TCL 20SE. |
| Processor Core Qty | Quad-core | 8-core | TCL 20SE has higher processor core quantity than ASUS ZenFone Zoom (ZX551ML). |
| Graphics System (GPU) | PowerVR G6430 | Qualcomm ADRENO 610 |
| MEMORY | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| RAM | 4 GB | LPDDR3 SDRAM - 4 GB | Both phones have the same RAM size. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | TCL 20SE has more internal memory than ASUS ZenFone Zoom (ZX551ML). |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC, microSD, microSDXC - up to 256 GB |
| CAMERA | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 13 Megapixel | 16 Megapixel | TCL 20SE has better camera resolution than ASUS ZenFone Zoom (ZX551ML). |
| Sensor Size | - | 1/2.77" | |
| Lens Aperture | F/2.7-4.8 | F/1.8 | TCL 20SE has better lens aperture than ASUS ZenFone Zoom (ZX551ML). |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | - | 77 degree(s) | |
| Pixel Size | - | 1.12 μm | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | ASUS ZenFone Zoom (ZX551ML) has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Digital Zoom | 3x | 4x | TCL 20SE has better digital zoom than ASUS ZenFone Zoom (ZX551ML). |
| Special Effects | - | HDR, Bokeh effect | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama | Panorama, Slow motion mode, Pro mode, night mode, super resolution mode, portrait mode, Filter mode, low-light video, Light Trace Mode, Stop-Motion Video Mode, Super Macro Mode, AI colour portrait video, AI Sky Enhancement | |
| Face Recognition (Face ID) | Face detection | Face detection | Both phones have face detection. |
| Light Source | Dual LED flash | Single tone dual LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | - | Snapshot in video recording, AI Quad camera, Audio zoom, scene detection 2.0 |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 5 Megapixel | |
|---|---|---|---|
| Sensor Size (2nd Camera) | - | 1/5" | |
| Lens Type (2nd Camera) | - | Super wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Lens Element Qty (2nd Camera) | - | 4-element | |
| Field of View (2nd Camera) | - | 115 degree(s) | |
| Pixel Size (2nd Camera) | - | 1.12 μm | |
| Camera Features (2nd Camera) | - | 4-piece lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Size (3rd Camera) | - | 1/5" | |
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Field of View (3rd Camera) | - | 83 degree(s) | |
| Pixel Size (3rd Camera) | - | 1.75 μm | |
| Camera Functions (3rd Camera) | - | Depth camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Sensor Size (4th Camera) | - | 1/5" | |
| Lens Aperture (4th Camera) | - | F/2.4 | |
| Lens Element Qty (4th Camera) | - | 3-element | |
| Field of View (4th Camera) | - | 83 degree(s) | |
| Pixel Size (4th Camera) | - | 1.75 μm | |
| Camera Functions (4th Camera) | - | Macro camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 5 Megapixel | 8 Megapixel | TCL 20SE has better front camera resolution than ASUS ZenFone Zoom (ZX551ML). |
| Sensor Size (Front) | - | 1/4" | |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Lens Element Qty (Front) | - | 4-element | |
| Field of View (Front) | - | 80.6 degree(s) | |
| Pixel Size (Front) | - | 1.12 μm | |
| Focus Adjustment | - | Focus free | |
| Special Effects (Front) | - | HDR, Face Beautification | |
| Camera Modes (Front) | - | Portrait mode | |
| Face Recognition (Face ID) | - | Face detection | TCL 20SE has face detection. |
| Light Source (Front) | - | Display flash | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | TCL 20SE has larger battery capacity than ASUS ZenFone Zoom (ZX551ML). |
|---|---|---|---|
| Recharge Time (Charging Time) | - | 4 hours | |
| Standby Time | - | 336 hours | |
| Run Time Details | - | Standby: up to 336 hrs Playback (video): up to 17 hrs Playback (audio): up to 60 hrs Active online usage (4G): up to 16 hrs |
|
| Battery Technology | Lithium polymer | - |
| CELLULAR | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 5.0 (Lollipop) | Android 11 | |
| User Interface | ASUS ZenUI 2.0 | TCL UI | |
| Intelligent Assistant | - | Google Assistant | |
| Navigation | A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSPA+, LTE, VoLTE, VoWiFi | |
|---|---|---|---|
| 2G Band | 850 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 2, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 5, Band 7, Band 8, Band 9, Band 18, Band 19, Band 28 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 1800, FDD 800 lower, FDD 800 upper, FDD 700 APT | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| Supported Digital Audio Standards | - | AAC, PCM, AMR, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AWB, Vorbis | |
|---|---|---|---|
| Sound Enhancements | - | Hi-Res audio |
| FEATURES | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| Phone Functions | Speakerphone, call timer, conference call, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, digital compass, gyro sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass | |
| Security Devices | - | Face recognition, fingerprint reader | |
| Security Technology | - | Face Key | |
| Additional Phone Features | Multitasking | HD Voice, dual microphones with noise cancellation, Face Key, Google Lens, Google Assistant Button, floating window multitasking |
| OTHERS | ASUS ZenFone Zoom (ZX551ML) | TCL 20SE |
|---|
| Included Accessories | Power adapter | Power adapter, SIM card removal tool, USB-C cable, TPU case | |
|---|---|---|---|
| Compliant Standards | - | HAC (Hearing Aid Compatible) |
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