Both Poco C51 (6GB RAM + 128 GB) and Poco C65 (6GB RAM + 128GB) comes with same RAM. Both have the same amount of internal memory.
| Name | Poco C51 (6GB RAM + 128 GB) | Poco C65 (6GB RAM + 128GB) | 
| RAM | 6 GB | 6 GB | 
|---|---|---|
| Display | 6.52 in | 6.74 in | 
| Internal Memory | 128 GB | 128 GB | 
| Battery | 5000 mAh | 5000 mAh | 
| Camera | 8 MP + 0.08 MP Dual | 50 MP + 2 MP Triple | 
| Price | Rs. 7899 | Rs. 9499 | 
The launch Date of the first phone is April 07, 2023. The cost of Poco C51 (6GB RAM + 128 GB) is Rs. 7899. The launch Date of the second phone is December 12, 2023. The cost of Poco C65 (6GB RAM + 128GB) is Rs. 9499.
Poco C65 (6GB RAM + 128GB) has larger screen size of 6.74 inches in comparison to Poco C51 (6GB RAM + 128 GB)'s 6.52 inch screen. Poco C51 (6GB RAM + 128 GB) has IPS Screen type where as Poco C65 (6GB RAM + 128GB) has IPS LCD Screen type. Poco C51 (6GB RAM + 128 GB) has display density of 269 PPI & Poco C65 (6GB RAM + 128GB) has only 260 PPI display density. In terms of screen to body ratio, Poco C65 (6GB RAM + 128GB) has better screen to body ratio of ~ 93% than Poco C51 (6GB RAM + 128 GB)'s ~ 81%. Poco C51 (6GB RAM + 128 GB) has 20:9 aspect ratio where as Poco C65 (6GB RAM + 128GB) has 20.6:9 aspect ratio.
Both mobiles come with 6 GB RAM and both have same Internal Memory of 128 GB.
Poco C65 (6GB RAM + 128GB)'s 50 MP + 2 MP Triple Rear Camera outclasses Poco C51 (6GB RAM + 128 GB)'s 8 MP + 0.08 MP Dual Rear Camera in terms of resolution. Poco C65 (6GB RAM + 128GB) will be better choice if you're looking to click lot of selfies as it has better 8 MP Front Camera in comparison to Poco C51 (6GB RAM + 128 GB)'s 5 MP Front Camera.
Both the phones run on Android Operating System Version 13.
| Name | Poco C51 (6GB RAM + 128 GB) | Poco C65 (6GB RAM + 128GB) | 
| General | ||
| Model | C51 | C65 | 
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM | 
| Dual Sim | Yes | Yes | 
| Sim Size | Nano SIM | Nano+Nano SIM | 
| Device Type | Smartphone | Smartphone | 
| Release Date | April 07, 2023 | December 12, 2023 | 
| Design | ||
| Dimensions | 76.75 x 164.9 x 9.09 mm | 78 x 168 x 8.09 mm | 
| Weight | 192 g | 192 g | 
| Colors | Power Black, Royal Blue | Black, Blue, Purple | 
| Display | ||
| Type | Color IPS Screen (16M Colors) | Color IPS LCD Screen (16M Colors) | 
| Touch | Yes, 120 Hz Touch Sampling Rate | Yes | 
| Size | 6.52 inches, 720 x 1600 pixels, 60 Hz | 6.74 inches, 720 x 1600 pixels, 90 Hz | 
| Aspect Ratio | 20:9 | 20.6:9 | 
| PPI | ~ 269 PPI | ~ 260 PPI | 
| Screen to Body Ratio | ~ 81% | ~ 93% | 
| Glass Type | Corning Gorilla Glass 3 | |
| Features | 400 nits (Typ.) Brightness, Scratch Resistant Display | 450 nits (typ), 600 nits | 
| Notch | Yes, Water Drop Notch | Yes, Water Drop Notch | 
| Memory | ||
| RAM | 6 GB | 6 GB | 
| Expandable RAM | Upto 5 GB Extra Virtual RAM | Upto 6 GB Extra Virtual RAM | 
| Storage | 128 GB | 128 GB | 
| Card Slot | Yes, upto 1 TB | Yes, 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 | Wi-Fi 802.11 a/b/g/n | Supports 2.4 GHz and 5 GHz Dual Band | 
| Bluetooth | Yes, v5.0 | Yes, v5.3, A2DP, LE | 
| USB | Yes, microUSB v2.0 | Yes, USB-C v2.0 | 
| USB Features | USB Tethering, USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging | 
| IR Blaster | No | No | 
| Extra | ||
| GPS | Yes, with A-GPS, AGPS, GLONASS, BEIDOU | Yes, with A-GPS, GPS, GLONASS, GALILEO, BEIDOU | 
| Fingerprint Sensor | Yes, Rear | Yes, Side | 
| Face Unlock | Yes | Yes | 
| Sensors | Accelerometer | Accelerometer, Side Fingerprint Sensor, Ambient Light Sensor, Proximity Sensor (Ultrasonic) | 
| 3.5mm Headphone Jack | Yes | Yes | 
| Splash Resistant | Yes | Yes | 
| Extra Features | MIUI Dialer | |
| Camera | ||
| Rear Camera | 8 MP ƒ/2 (Wide Angle) 0.08 MP (Depth Sensor) | 50 MP ƒ/1.8 (Wide Angle) 2 MP ƒ/2.4 (Macro) AI Lens | 
| Auto Focus | Yes | Yes | 
| Features | HDR | AI Portrait Mode, 50MP Mode, Film Filters, Timelapse, Night Mode, Voice Shutter, Tilt Shift, Timed Burst, Video Features: 1080p Recording Timelapse | 
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 
| Flash | Yes, Dual LED | Yes, LED | 
| Front Camera | 5 MP ƒ/2.2 | 8 MP ƒ/2.2 (Wide Angle) Screen Flash | 
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD, 720p @ 30 fps HD | 
| Technical | ||
| OS | Android v13 | Android v13 | 
| Custom UI | MIUI 14 for POCO | |
| Chipset | Mediatek Helio G36 | MediaTek Helio G85 | 
| CPU | 2.2 GHz, Octa Core Processor | 2 GHz, Octa Core Processor | 
| Core Details | 4x Cortex-A53@2.2 GHz & 4x Cortex-A53@1.7 GHz | 2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55 | 
| GPU | PowerVR GE8320 | Mali-G52 MC2 | 
| Java | No | No | 
| Browser | Yes, supports HTML5 | Yes, supports HTML5 | 
| Multimedia | ||
| Yes | Yes | |
| Music | MP3, AMR, FLAC, APE | Yes | 
| Video | MP4, M4V. MKV, XVID | Yes | 
| FM Radio | Yes, with FM Recording | Yes, with FM Recording | 
| Document Reader | Yes | Yes | 
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery | 
| Size | 5000 mAh, Li-Po Battery | 5000 mAh, Li-Po Battery | 
| Fast Charging | Yes, 10W Fast Charging | Yes, 18W |