In depth comparison and review of ASUS ZenFone Go (ZC500TG) and Realme C21. 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 Go (ZC500TG) | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZC500TG | - | |
| Form Factor | Touch | Touch | |
| Height | 144.5 mm | 165.2 mm | Realme C21 has greater height than ASUS ZenFone Go (ZC500TG). |
| Width | 71 mm | 76.4 mm | Realme C21 has greater width than ASUS ZenFone Go (ZC500TG). |
| Depth | 9.98 mm | 8.9 mm | Realme C21 is narrower than ASUS ZenFone Go (ZC500TG). |
| Weight | 135 g | 190 g | ASUS ZenFone Go (ZC500TG) is lighter than ASUS ZenFone Go (ZC500TG). |
| Body Colour | Red | White | Black | Cross black | Cross blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.497 W/kg (body), 0.362 W/kg (head) | - | |
| Integrated Components | FM radio | - | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Micro SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | ASUS ZenFone Go (ZC500TG) | Realme C21 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | IPS | LCD | |
| Screen Size (Display Size) | 5" | 6.5" | Realme C21 has larger screen size than ASUS ZenFone Go (ZC500TG). |
| Screen Resolution (Display Resolution) | 1280 x 720 pixels | 1600 x 720 pixels | Realme C21 has better screen resolution than ASUS ZenFone Go (ZC500TG). |
| Display Format | HD | HD+ | |
| Pixel Density | 294 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 420 cd/m² | |
| Display Features | - | Mini-drop display |
| PROCESSOR | ASUS ZenFone Go (ZC500TG) | Realme C21 |
|---|
| Processor Type (CPU) | MediaTek | MediaTek Helio G35 | |
|---|---|---|---|
| Processor Number | MT6580 | - | |
| Clock Speed | 1.3 GHz | 2.3 GHz | Realme C21 has higher clock speed than ASUS ZenFone Go (ZC500TG). |
| Processor Core Qty | Quad-core | 8-core | Realme C21 has higher processor core quantity than ASUS ZenFone Go (ZC500TG). |
| Graphics System (GPU) | - | PowerVR GE8320 |
| MEMORY | ASUS ZenFone Go (ZC500TG) | Realme C21 |
|---|
| RAM | 2 GB | LPDDR4X SDRAM - 3 GB | Realme C21 has more RAM than ASUS ZenFone Go (ZC500TG). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 8 GB | 32 GB | Realme C21 has more internal memory than ASUS ZenFone Go (ZC500TG). |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 64 GB | microSD |
| CAMERA | ASUS ZenFone Go (ZC500TG) | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 8 Megapixel | 13 Megapixel | Realme C21 has better camera resolution than ASUS ZenFone Go (ZC500TG). |
| Lens Aperture | F/2.0 | F/2.2 | ASUS ZenFone Go (ZC500TG) has better lens aperture than ASUS ZenFone Go (ZC500TG). |
| Lens Construction | - | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 4x | |
| Special Effects | - | HDR | |
| Camera Modes | - | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Light Source | LED light | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Glow Touch | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Camera Functions (2nd Camera) | - | B&W lens |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Camera Functions (3rd Camera) | - | Macro camera | |
| Camera Features (3rd Camera) | - | 4cm macro photography |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 2 Megapixel | 5 Megapixel | Realme C21 has better front camera resolution than ASUS ZenFone Go (ZC500TG). |
| Lens Aperture (Front) | - | F/2.2 | |
| Lens Element Qty (Front) | - | 3-element | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | Time-lapse mode, Beauty mode, portrait mode, AI Beauty, Filter mode, Panoramic mode | |
| Face Recognition (Face ID) | - | Face recognition | Realme C21 has face detection. |
| BATTERY AND CHARGING | ASUS ZenFone Go (ZC500TG) | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 2070 mAh | 5000 mAh | Realme C21 has larger battery capacity than ASUS ZenFone Go (ZC500TG). |
|---|---|---|---|
| Standby Time | 321 hours | - | |
| Talk Time | 660 minutes | - | |
| Run Time Details | Talk: up to 660 min Standby: up to 321 hrs |
- | |
| Battery Technology | Lithium polymer | - |
| CELLULAR | ASUS ZenFone Go (ZC500TG) | Realme C21 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 4G | Realme C21 has more advanced generation mobile network. |
| Operating System | Android 5.1 (Lollipop) | Android 10 | |
| User Interface | ASUS ZenUI 2.0 | Realme UI | |
| Navigation | GPS, A-GPS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | ASUS ZenFone Go (ZC500TG) | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | - | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 850, 900 | |
| 4G LTE Band | - | 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 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11n | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 5.0 | |
| Messaging Services | Omlet Chat, SMS, MMS | - |
| MEDIA | ASUS ZenFone Go (ZC500TG) | Realme C21 |
|---|
| Supported Digital Audio Standards | AAC, MP3, AAC +, WMV (Sound) | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, H.264, H.263, VP8, VP9 | - |
| FEATURES | ASUS ZenFone Go (ZC500TG) | Realme C21 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, digital compass, hall sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | - | Fingerprint reader | |
| Additional Phone Features | ASUS WebStorage (5GB), Google Drive Storage (100 GB) | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | ASUS ZenFone Go (ZC500TG) | Realme C21 |
|---|
| Included Accessories | USB cable, power adapter | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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