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- 1 User Rating
- Last Updated: 2nd November 2025
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Display 5.00-inch (720x1280)
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Processor MediaTek MT6592M
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Front Camera 3.2MP
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Rear Camera 8MP
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RAM 1GB
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Storage 8GB
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Battery Capacity 2000mAh
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OS Android 4.4
Celkon Millennia Octa510 Summary
Celkon Millennia Octa510 mobile was launched in January 2015. The phone comes with a 5.00-inch touchscreen display offering a resolution of 720x1280 pixels. Celkon Millennia Octa510 is powered by a 1.4GHz octa-core MediaTek MT6592M processor. It comes with 1GB of RAM. The Celkon Millennia Octa510 runs Android 4.4 and is powered by a 2000mAh removable battery.
As far as the cameras are concerned, the Celkon Millennia Octa510 on the rear packs 8-megapixel camera. It sports a 3.2-megapixel camera on the front for selfies.
Celkon Millennia Octa510 is based on Android 4.4 and packs 8GB of inbuilt storage that can be expanded via microSD card (up to 32GB). The Celkon Millennia Octa510 is a dual-SIM (GSM and GSM) mobile that accepts Regular and Regular cards. The Celkon Millennia Octa510 measures 143.50 x 71.90 x 9.10mm (height x width x thickness) and weighs 136.00 grams. It was launched in Black colour.
Connectivity options on the Celkon Millennia Octa510 include Wi-Fi, GPS, FM radio, and 3G. Sensors on the phone include accelerometer, ambient light sensor, gyroscope, and proximity sensor.
As of 2nd November 2025, Celkon Millennia Octa510 price in India starts at Rs. 8,999.
Celkon Millennia Octa510 Full Specifications
| Brand | Celkon |
| Model | Millennia Octa510 |
| Price in India | ₹8,999 |
| Release date | January 2015 |
| Form factor | Touchscreen |
| Dimensions (mm) | 143.50 x 71.90 x 9.10 |
| Weight (g) | 136.00 |
| Battery capacity (mAh) | 2000 |
| Removable battery | Yes |
| Colours | Black |
| Screen size (inches) | 5.00 |
| Touchscreen | Yes |
| Resolution | 720x1280 pixels |
| Processor | 1.4GHz octa-core |
| Processor make | MediaTek MT6592M |
| RAM | 1GB |
| Internal storage | 8GB |
| Expandable storage | Yes |
| Expandable storage type | microSD |
| Expandable storage up to (GB) | 32 |
| Rear camera | 8-megapixel |
| Rear flash | LED |
| Front camera | 3.2-megapixel |
| Operating system | Android 4.4 |
| Wi-Fi | Yes |
| GPS | Yes |
| Bluetooth | Yes |
| NFC | No |
| Infrared | No |
| USB OTG | No |
| Headphones | 3.5mm |
| FM | Yes |
| Number of SIMs | 2 |
| Wi-Fi Direct | No |
| Mobile High-Definition Link (MHL) | No |
| SIM 1 | |
| SIM Type | Regular |
| GSM/CDMA | GSM |
| 3G | Yes |
| 4G/ LTE | No |
| Supports 4G in India (Band 40) | No |
| SIM 2 | |
| SIM Type | Regular |
| GSM/CDMA | GSM |
| 3G | No |
| 4G/ LTE | No |
| Supports 4G in India (Band 40) | No |
| Compass/ Magnetometer | No |
| Proximity sensor | Yes |
| Accelerometer | Yes |
| Ambient light sensor | Yes |
| Gyroscope | Yes |
| Barometer | No |
| Temperature sensor | No |
Celkon Millennia Octa510 User Review and Ratings
1 review
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My Review on Celcon Octa 510KISHORE RAVI (Sep 16, 2015) on Gadgets 360I give maximum thumbs up stars for "Celkon Service Center", in our area, but i am really disappointed and financially broken investing on this phone. I needed the help of Celkon Service Center within a month of my phone's purchase and their cooperation seemed justified but the problem still exists and now i have to invest more time (which i do not have), just to get it fixed. No response from Customer Care either. The price i paid for this phone is not easy for me,but the design is very attractive, simple and cute, and as for the performance, you have no other choice but to get disappointed the minute you pay the price. Dare to purchase this phone and you will have no choice but to agree with me. No offense. Celkon Service Center - All Stars Celkon Octa 510 - not worth mentioning half star Customer Care - Absolutely no idea if they exist. I only gave 1 star as i do not have choice and if its up to me i wouldn't waste on saying it a star.Is this review helpful?
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