| Hardware and OS | Realme C15 Holiday Edition | |
| Operating System | Android v10 | |
| Processor | 1.8 GHz, Octa Core Processor | |
| Chipset | Qualcomm Snapdragon 460 | |
| Cores | 1.8 GHz, Quad core, Kryo 240 1.8 GHz, Quad core, Kryo 240 | |
| RAM | 4 GB | |
| Internal Memory | 64 GB | |
| Memory Card Slot | Yes, upto 256 GB | |
| Graphics | Adreno 610 | |
| Dual Sim | Yes | |
| Sim Size | Nano Nano SIM | |
| Sim Type | Dual Sim, GSM GSM | |
| Display | Realme C15 Holiday Edition | other phones |
| Screen Size | 6.52 inches, 720 x 1600 pixels, 60 Hz | |
| Display Type | Color IPS LCD screen (16.7M) | |
| Pixel Density | ~269 PPI | |
| Screen-to-Body Ratio | ~ 88.7% | |
| Touch Screen | Yes, with Multitouch | |
| Screen Protection | Corning Gorilla Glass | |
| Display aspect ratio | 20:9 | |
| Connectivity | Realme C15 Holiday Edition | other phones |
| 3G Network | Yes | |
| 4G Network | Yes | |
| Bluetooth | Yes, v5.0, A2DP, LE, aptX | |
| EDGE | Yes | |
| GPRS | Yes | |
| USB | Yes, microUSB v2.0 | |
| USB Features | USB on-the-go, USB Charging | |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | Yes, with wifi-hotspot | |
| Multimedia | Realme C15 Holiday Edition | other phones |
| Email | Yes | |
| FM Radio | Yes | |
| Music | AAC, HE-AAC v1, HE-AAC v2, AMR, AWB, MIDI, MP3, OGG, VORBIS | |
| Video | MP4, 3GP, 3G2, 3GPP, 3GPP2, M4V, MKV | |
| Browser | Yes, supports HTML5 | |
| Java | No | |
| Design | Realme C15 Holiday Edition | other phones |
| Dimensions | 164.5 x 75.9 x 9.8 mm | |
| Weight | 209 g | |
| Battery | Realme C15 Holiday Edition | other phones |
| Battery capacity | 6000 mAh, Li-Po Battery | |
| Type | Non-Removable Battery | |
| Music Playback Time | 60 hours | |
| StandBy Time | 57 days | |
| Talk Time | 46 hours | |
| Fast Charging | 18W Fast Charging | |
| Reverse Charging | Yes | |
| Other | Realme C15 Holiday Edition | other phones |
| Sensors | Magnetic Induction Sensor, Light Sensor, Proximity Sensor, Acceleration Sensor, Compass | |
| Fingerprint Sensor | Yes, Rear | |
| Face Unlock | Yes | |
| Features | Chroma Boost, Ultra-wide Mode, Beauty, Filter, HDR Mode, Panoramic View, Portrait, Timelapse, Slo-mo, Super NightScape, Expert Mode | |
