DISPLAY – 16.39 Centimetersmassive 6000mAh Lithium-ion Battery (Non-Removable) with C-Type Super Fast Charging (25W Charging Support) OS UPDATES & SECURITY – Get upto 4 Generations of AndroidOS Upgrades & 5 Years of Security Updates with Samsung Galaxy M15. Includes 1 Year Manufacturer Warranty for Device and 6 Months for In-Box Accessories.