In depth comparison and review of ZTE Axon M 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 | ZTE Axon M | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch - dual screen | Touch | |
| Height | 150.8 mm | 165.2 mm | Realme C21 has greater height than ZTE Axon M. |
| Width | 71.6 mm | 76.4 mm | Realme C21 has greater width than ZTE Axon M. |
| Depth | 12.1 mm | 8.9 mm | Realme C21 is narrower than ZTE Axon M. |
| Weight | 230 g | 190 g | Realme C21 is lighter than ZTE Axon M. |
| Body Colour | Carbon black | Cross black | Cross blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.2 W/kg (body), 1.05 W/kg (head) | - | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | ZTE Axon M | Realme C21 |
|---|
| Display Type | LCD display | LCD display | |
|---|---|---|---|
| Display Technology | TFT | LCD | |
| Screen Size (Display Size) | 5.2" | 6.5" | Realme C21 has larger screen size than ZTE Axon M. |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 1600 x 720 pixels | ZTE Axon M has better screen resolution than Realme C21. |
| Display Format | Full HD | HD+ | |
| Pixel Density | 426 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 420 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Display Features | 2.5D Glass | Mini-drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| SECOND DISPLAY |
|---|
| Second Display Type | LCD display - colour | - | |
|---|---|---|---|
| Second Display Screen Size | 5.2" | - | |
| Second Display Resolution | 1920 x 1080 pixels | - | |
| Second Display Colour Depth | 16.7 million colours | - |
| PROCESSOR | ZTE Axon M | Realme C21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 821 | MediaTek Helio G35 | |
|---|---|---|---|
| Processor Number | MSM8996 | - | |
| Clock Speed | 2.15 GHz | 2.3 GHz | Realme C21 has higher clock speed than ZTE Axon M. |
| Processor Core Qty | Quad-core | 8-core | Realme C21 has higher processor core quantity than ZTE Axon M. |
| 64-bit Architecture | Yes | - | ZTE Axon M has 64-bit architecture. |
| Graphics System (GPU) | - | PowerVR GE8320 |
| MEMORY | ZTE Axon M | Realme C21 |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 3 GB | ZTE Axon M has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | ZTE Axon M has more internal memory than Realme C21. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSD |
| CAMERA | ZTE Axon M | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 0 | 3 | |
|---|---|---|---|
| Sensor Resolution | - | 13 Megapixel | |
| Lens Aperture | - | F/2.2 | |
| Lens Construction | - | 5-element | |
| Focus Adjustment | - | 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 flash | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | - | 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) | 20 Megapixel | 5 Megapixel | ZTE Axon M has better front camera resolution than Realme C21. |
| Lens Aperture (Front) | - | F/2.2 | |
| Lens Element Qty (Front) | - | 3-element | |
| Focus Adjustment | Automatic | - | |
| 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. |
| Light Source (Front) | LED light | - | |
| Video Resolutions (Front) | 3840 x 2160 (4K) at 30 fps | - | |
| Camera Features (Front) | Rear camera mode | - |
| BATTERY AND CHARGING | ZTE Axon M | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 3180 mAh | 5000 mAh | Realme C21 has larger battery capacity than ZTE Axon M. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | - | ZTE Axon M has fast charging technology. |
| Standby Time | 290 hours | - | |
| Talk Time | 1722 minutes | - | |
| Run Time Details | Talk: up to 1722 min Standby: up to 290 hrs |
- | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | ZTE Axon M | Realme C21 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 7.1.2 (Nougat) | Android 10 | |
| User Interface | - | Realme UI | |
| Navigation | GPS, A-GPS, GLONASS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | ZTE Axon M | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, LTE Advanced | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 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 2, Band 4, Band 5, Band 12, Band 29, Band 30, Band 66 | Band 1, Band 3, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 1900 PCS, FDD 1700 - 2110 AWS, FDD 850, FDD 700a, FDD 700d, FDD 2300 WCS, FDD 1700 - 2110 AWS-3 | 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 802.11ac/b/g/n | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| NFC | Yes | - | ZTE Axon M has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | ZTE Axon M | Realme C21 |
|---|
| Sound Enhancements | Dolby Atmos sound technology | - | |
|---|---|---|---|
| Audio Processor | AKM 4962 | - |
| FEATURES | ZTE Axon M | Realme C21 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | |
|---|---|---|---|
| Sensors | - | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | TTY compatible, software updates FOTA (Firmware Over The Air) | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | ZTE Axon M | Realme C21 |
|---|
| Included Accessories | Power adapter, USB-C cable | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | HAC (Hearing Aid Compatible) | TUV Rheinland |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
