Both Realme C61 and Lava O3 Pro comes with same RAM. Lava O3 Pro has more internal memory than Realme C61
| Name | Realme C61 | Lava O3 Pro | 
| RAM | 4 GB | 4 GB | 
|---|---|---|
| Display | 6.74 in | 6.56 in | 
| Internal Memory | 64 GB | 128 GB | 
| Battery | 5000 mAh | 5000 mAh | 
| Camera | 32 MP | 50 MP + Ultra Wide + Macro Triple | 
| Price | Rs. 6499 | Rs. 6349 | 
The launch Date of the first phone is June 28, 2024. The cost of Realme C61 is Rs. 6499. The launch Date of the second phone is December 25, 2024. The cost of Lava O3 Pro is Rs. 6349.
Lava O3 Pro has screen size of 6.56 inches which falls short to Realme C61's 6.74 inch screen. There is IPS Screen Type in both the phones. Lava's phone has display density of 267 PPI & Realme's phone has only 260 PPI display density. Both phones have same aspect ratio of 20:9.
Both phones come with 4 GB RAM Lava O3 Pro has more Internal Memory (128 GB) than Realme C61 (64 GB).
Lava O3 Pro's 50 MP + Ultra Wide + Macro Triple Rear Camera outshines Realme C61's 32 MP Rear Camera in terms of resolution. Lava O3 Pro will be better choice if you're looking to click lot of selfies as it has better 8 MP Front Camera in comparison to Realme C61's 5 MP Front Camera.
Both the phones run on Android Operating System Version 14.
| Name | Realme C61 | Lava O3 Pro | 
| General | ||
| Model | C61, RMX3933 | Yuva O3 Pro | 
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM (Hybrid Slot) | 
| Dual Sim | Yes | Yes | 
| Sim Size | Nano+Nano SIM | Nano+Nano SIM | 
| Device Type | Smartphone | Smartphone | 
| Release Date | June 28, 2024 | December 25, 2024 | 
| In The Box | Handset, Type-C Data Cable, Charger, Sim Ejector Tool, Protective Case, Safety Guide, Quick Guide | |
| Design | ||
| Dimensions | 76.67 x 167.26 x 7.84 mm | |
| Weight | 187 g | |
| Bezel less | No | |
| Colors | Safari Green, Marble Black | |
| Display | ||
| Type | Color IPS Screen (16M Colors) | Color IPS Screen (16M Colors) | 
| Touch | Yes, 180 Hz Touch Sampling Rate | Yes | 
| Size | 6.74 inches, 720 x 1600 pixels, 90 Hz | 6.56 inches, 1600 x 720 pixels, 60 Hz | 
| Aspect Ratio | 20:9 | 20:9 | 
| PPI | ~ 260 PPI | ~ 267 PPI | 
| Screen to Body Ratio | ~ 90.3% | |
| Features | Color Gamut: Vivid Mode: 83.5% NTSC, Gentle Mode: 83.5% NTSC, Contrast Ratio: 1500:1, Supports Sunshine Screen, Brightness: 450 Nits, Sunlight Screen: 560 Nits, Color Saturation: 83.5% | |
| Notch | Yes, Water Drop Notch | Yes, Water Drop Notch | 
| Memory | ||
| RAM | 4 GB | 4 GB | 
| Expandable RAM | Upto 4 GB Extra Virtual RAM | Upto 4 GB Extra Virtual RAM | 
| Storage | 64 GB | 128 GB | 
| Card Slot | Yes, upto 2 TB | Yes, (Hybrid Slot), upto 1 TB | 
| Connectivity | ||
| GPRS | Yes | Yes | 
| EDGE | Yes | Yes | 
| 3G | Yes | Yes | 
| 4G | Yes | Yes | 
| VoLTE | Yes, Dual Stand-By | Yes | 
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot | 
| Wifi Version | 802.11 a/b/g/n/ac, Wi-Fi 5 (802.11 ac), 802.11 a/b/g/n, (WLAN 2.4 GHz|WLAN 5.1 GHz|WLAN 5.8 GHz) | Wi-Fi 802.11 b/g/n/ac, hotspot | 
| Bluetooth | Yes, v5.0 | Yes, v5.2 | 
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 | 
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go | 
| Extra | ||
| GPS | with AGPS, BEIDOU, GALILEO | Yes | 
| Fingerprint Sensor | Yes, Side | Yes, Side | 
| Face Unlock | Yes | Yes | 
| Sensors | Accelerometer, Gyro, Proximity, Compass | Accelerometer, Proximity, Ambient Light | 
| 3.5mm Headphone Jack | Yes | Yes | 
| Water Resistance | IP54 | |
| Splash Resistant | Yes | |
| Dust Resistant | Yes | |
| Extra Features | EMMC 5.1, TUV SUD Certification, ArmorShell Protection | Anonymous Auto call Recording | 
| Camera | ||
| Rear Camera | 32 MP ƒ/1.8 (Wide Angle) 1/3.1 inch Sensor Size, 0.7um Pixel Size, FOV: 77 Degree, 5P Lens | 50 MP ƒ/2 (Ultra Wide) (Macro) | 
| Camera Sensor | GC32E1-WA1XA | |
| Auto Focus | Yes | Yes | 
| Features | Photo, Video, Night, 32MP, Manual, Panorama, Portrait, Timelapse, Slow Motion, QR Code, Google Lens | Beauty, HDR, Night, Portrait, AI, Pro, Panorama, Slow Motion, Filters, Timelapse, Intelligent Scanning | 
| Video Recording | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 720p | 
| Flash | Yes, LED | Yes, LED | 
| Front Camera | 5 MP ƒ/2.2 (Wide Angle) SMARTSENS SC520CS,FOV: 77 Degree, 3P Lens, 1/5 inch Sensor Size, 1.12um Pixel Size, Equivalent Focal Length: 26mm, Effective Focal Length: 2.2mm, Fixed Focus Screen Flash | 8 MP Screen Flash | 
| Front Video Recording | 720p @ 30 fps HD | |
| Technical | ||
| OS | Android v14 | Android v14 | 
| Custom UI | Realme UI 5 | |
| Chipset | Unisoc T612 | Unisoc T606 | 
| CPU | 1.8 GHz, Octa Core Processor | 1.6 GHz, Octa Core Processor | 
| Core Details | 2 x Cortex-A75@1.6GHz & 6 x Cortex-A55@1.6GHz | |
| GPU | Mali-G57 MP1 | |
| Java | No | No | 
| Browser | Yes | Yes | 
| Multimedia | ||
| Yes | Yes | |
| Music | AAC, APE, FLAC, AMR, MID, MP3, OGG, WAV, WMA, MKA | Yes | 
| Video | H.264, MPEG4, DIVX/XVID, H.263, SORENSEN SPARK, VP8, VP9, H.265, AV1 | Yes | 
| FM Radio | No | Yes | 
| Document Reader | Yes | |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 5000 mAh, Li-ion Battery | 5000 mAh, Li-Po Battery | 
| Fast Charging | Yes, 18W Fast Charging | Yes, 10W | 
| Reverse Charging | Yes | |