In depth comparison and review of BlackBerry DTEK60 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 | BlackBerry DTEK60 | Realme C21 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 153.9 mm | 165.2 mm | Realme C21 has greater height than BlackBerry DTEK60. |
| Width | 75.4 mm | 76.4 mm | Realme C21 has greater width than BlackBerry DTEK60. |
| Depth | 7 mm | 8.9 mm | BlackBerry DTEK60 is narrower than BlackBerry DTEK60. |
| Weight | 165 g | 190 g | BlackBerry DTEK60 is lighter than BlackBerry DTEK60. |
| Body Colour | - | Cross black | Cross blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.988 W/kg (body), 1.275 W/kg (head) | - | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
Micro-USB Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | BlackBerry DTEK60 | Realme C21 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | AMOLED | LCD | |
| Screen Size (Display Size) | 5.5" | 6.5" | Realme C21 has larger screen size than BlackBerry DTEK60. |
| Screen Resolution (Display Resolution) | 2560 x 1440 pixels | 1600 x 720 pixels | BlackBerry DTEK60 has better screen resolution than Realme C21. |
| Display Format | QHD | HD+ | |
| Pixel Density | 534 ppi | - | |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 420 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Display Features | - | Mini-drop display | |
| Display Protection (Screen Protector) | Scratch-resistant glass | - |
| PROCESSOR | BlackBerry DTEK60 | Realme C21 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 820 | MediaTek Helio G35 | |
|---|---|---|---|
| Clock Speed | - | 2.3 GHz | |
| Processor Core Qty | Quad-core | 8-core | Realme C21 has higher processor core quantity than BlackBerry DTEK60. |
| 64-bit Architecture | Yes | - | BlackBerry DTEK60 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 530 | PowerVR GE8320 |
| MEMORY | BlackBerry DTEK60 | Realme C21 |
|---|
| RAM | 4 GB | LPDDR4X SDRAM - 3 GB | BlackBerry DTEK60 has more RAM than Realme C21. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 32 GB | Both phones have the same internal memory capacity. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSD |
| CAMERA | BlackBerry DTEK60 | Realme C21 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 3 | |
|---|---|---|---|
| Sensor Resolution | 21 Megapixel | 13 Megapixel | BlackBerry DTEK60 has better camera resolution than Realme C21. |
| Lens Aperture | F/2.0 | F/2.2 | BlackBerry DTEK60 has better lens aperture than BlackBerry DTEK60. |
| Lens Construction | 6-element | 5-element | |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | 4x | 4x | Both phones have the same digital zoom. |
| Special Effects | HDR, Multi-frame Low Light Enhancement, Live Filters | HDR | |
| Camera Modes | Burst mode, Panorama, low-light shots | Panorama, Time-lapse mode, Slow motion mode, Beauty mode, Expert Mode, Nightscape capture mode, Portrait, Filter mode, Super nightscape | |
| Face Recognition (Face ID) | Face detection | - | BlackBerry DTEK60 has face detection. |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | 1920 x 1080 (1080p) at 30 fps | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), video image stabilisation, Fast focus lock | 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) | 8 Megapixel | 5 Megapixel | BlackBerry DTEK60 has better front camera resolution than Realme C21. |
| Lens Type (Front) | Wide-angle lens | - | |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Lens Element Qty (Front) | - | 3-element | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | HDR, Multi-frame Low Light Enhancement, Live Filters | HDR | |
| Camera Modes (Front) | Selfie panorama | 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 flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps | - | |
| Camera Features (Front) | Video image stabilisation | - |
| BATTERY AND CHARGING | BlackBerry DTEK60 | Realme C21 |
|---|
| Battery Capacity (Battery Size) | 3000 mAh | 5000 mAh | Realme C21 has larger battery capacity than BlackBerry DTEK60. |
|---|---|---|---|
| Standby Time | 336 hours | - | |
| Talk Time | 1560 minutes | - | |
| Run Time Details | Mixed usage: up to 24 hrs Talk: up to 1560 min Standby: up to 336 hrs Playback (audio): up to 88 hrs Playback (video): up to 17 hrs |
- | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | BlackBerry DTEK60 | 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 6.0 (Marshmallow) | Android 10 | |
| User Interface | - | Realme UI | |
| Intelligent Assistant | Google Now | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | BlackBerry DTEK60 | Realme C21 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE | 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 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 19, Band 20, Band 28, Band 38, Band 40, Band 41 | 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 800 upper, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | 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 4.2 | Bluetooth 5.0 | |
| NFC | Yes | - | BlackBerry DTEK60 has NFC reader for mobile payments. |
| Messaging Services | BlackBerry Messenger, Google+ Hangouts, SMS, MMS | - |
| MEDIA | BlackBerry DTEK60 | Realme C21 |
|---|
| Supported Digital Audio Standards | WAV, AAC, AMR, MP3, FLAC, XMF, AAC +, OGG, WMV (Sound), MXMF, AWB, IMY, RTTTL, RTX | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, VC-1, AVI, MOV, XviD, MPEG-4, ASF, DivX, 3GP, H.264, H.263, WebM, 3G2, VP8, VP9, H.265 | - |
| FEATURES | BlackBerry DTEK60 | Realme C21 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, 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, hall sensor | Accelerometer, proximity sensor, magnetometer, light sensor | |
| Security Devices | Fingerprint reader | Fingerprint reader | |
| Additional Phone Features | E-911 compliant, Android Beam, notification LED, Tap and pay, Tap and go | Super power saving mode, HyperEngine technology, Reverse charging |
| OTHERS | BlackBerry DTEK60 | Realme C21 |
|---|
| Included Accessories | Power adapter, USB 2.0 Type C-A cable | USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | - | TUV Rheinland | |
| Max Operating Temperature | 35 °C | - | |
| Min Operating Temperature | 0 °C | - |
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