In depth comparison and review of Motorola Moto Z3 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 | Motorola Moto Z3 | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 156.5 mm | 165.2 mm | Realme C21 has greater height than Motorola Moto Z3. |
| Width | 76.5 mm | 76.4 mm | Motorola Moto Z3 has greater width than Realme C21. |
| Depth | 6.75 mm | 8.9 mm | Motorola Moto Z3 is narrower than Motorola Moto Z3. |
| Weight | 156 g | 190 g | Motorola Moto Z3 is lighter than Motorola Moto Z3. |
| Body Colour | Ceramic black | Cross black | Cross blue | |
| Body Material | Gorilla glass, 6000 Series aluminium alloy | - | |
| Protection | P2i (liquid repellent coating) | - | |
| Waterproof (Water-resistant) | Yes | - | Motorola Moto Z3 is waterproof. |
| Connector Type | USB Type-C - 24 pin USB-C Moto Mods |
Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Motorola Moto Z3 | Realme C21 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Super AMOLED | LCD | |
| Screen Size (Display Size) | 6.01" | 6.5" | Realme C21 has larger screen size than Motorola Moto Z3. |
| Screen Resolution (Display Resolution) | 2160 x 1080 pixels | 1600 x 720 pixels | Motorola Moto Z3 has better screen resolution than Realme C21. |
| Display Format | Full HD+ | HD+ | |
| Aspect Ratio | 18:9 | 20:9 | |
| Max Brightness | - | 420 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Display Features | 2.5D Glass, night mode, Max Vision display | Mini-drop display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | - |
| PROCESSOR | Motorola Moto Z3 | Realme C21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 835 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | 2.35 GHz | 2.3 GHz | Motorola Moto Z3 has higher clock speed than Realme C21. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Motorola Moto Z3 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 540 | PowerVR GE8320 |
| MEMORY | Motorola Moto Z3 | Realme C21 |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 3 GB | Motorola Moto Z3 has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 32 GB | Motorola Moto Z3 has more internal memory than Realme C21. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSD |
| CAMERA | Motorola Moto Z3 | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 3 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 13 Megapixel | Realme C21 has better camera resolution than Motorola Moto Z3. |
| Lens Aperture | F/2.0 | F/2.2 | Motorola Moto Z3 has better lens aperture than Motorola Moto Z3. |
| Lens Construction | - | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 4x | |
| Special Effects | Black & White, Cinema, Live Filters, Spot Colour | HDR | |
| Camera Modes | Slow motion video, Panorama, Time-lapse mode, manual mode, group selfi mode | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Zero Shutter Lag, Phase Detect Auto-Focus (PDAF), Colour Correlated Temperature (CCT) flash | Phase Detect Auto-Focus (PDAF), AI Triple camera, Chroma boost |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 2 Megapixel | Motorola Moto Z3 has better second camera resolution than Realme C21. |
|---|---|---|---|
| Sensor Type (2nd Camera) | Monochrome CMOS | - | |
| Lens Aperture (2nd Camera) | - | F/2.4 | |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Camera Functions (2nd Camera) | Capture depth information | 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) | 8 Megapixel | 5 Megapixel | Motorola Moto Z3 has better front camera resolution than Realme C21. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | Motorola Moto Z3 has better front lens aperture than Motorola Moto Z3. |
| Lens Element Qty (Front) | - | 3-element | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | Slow motion video, Time-lapse mode | 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) | Display flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | - |
| BATTERY AND CHARGING | Motorola Moto Z3 | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | Realme C21 has larger battery capacity than Motorola Moto Z3. |
|---|---|---|---|
| Fast Charging Technology | TurboPower technology | - | Motorola Moto Z3 has fast charging technology. |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Motorola Moto Z3 | Realme C21 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.1 Oreo | Android 10 | |
| User Interface | - | Realme UI | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Motorola Moto Z3 | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 5, Band 8 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 850, 900 | 2100, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 13, Band 14, Band 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 30, Band 34, Band 38, Band 39, Band 40, Band 41, Band 46, 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 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700 PS, FDD 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 2300 WCS, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500, TDD 5150, 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 802.11a/b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | - | Motorola Moto Z3 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Motorola Moto Z3 | Realme C21 |
|---|
| Supported Digital Audio Standards | AAC, PCM, MP3, FLAC, AAC +, eAAC+, MIDI, AMR-WB, AMR-NB, Vorbis, AAC-ELD, WAVE | - | |
|---|---|---|---|
| Supported Digital Video Standards | H.264, H.263, HEVC, VP8, H.265 | - |
| FEATURES | Motorola Moto Z3 | 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, ambient light sensor, proximity sensor, magnetometer, gyro sensor, ultrasonic distance sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader | |
| Additional Phone Features | Smart Screen function, four microphones | Super power saving mode, HyperEngine technology, Reverse charging | |
| Android Enterprise Recommended | Yes | - |
| OTHERS | Motorola Moto Z3 | Realme C21 |
|---|
| Included Accessories | USB-C to 3.5 jack adapter, USB-C cable, TurboPower charger | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland |
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