Samsung a71 and a51 two mobile phones, neither wireless charging. The Samsung a51's battery capacity is 4,00mAh to keep the phone running for a long time. In our power consumption test, the phone streamed HD video at full brightness over Wi-Fi, which lasted 11 hours and 29 minutes. There is a 15W charger in the box, and you can activate the fast charging mode in the Settings menu. It does not support wireless charging. Samsung a71 does not support wireless charging, support 25W fast charging, but also equipped with a 4500mah large battery, equipped with their own Exynos 980 processor, rear 64 million pixels 12 million pixels 5 million pixels 5 million pixels 5 million pixel camera, front 32 million pixel camera, It features a 6.7-inch Super AMOLED Plus display with a 1080 x 2400 screen resolution, a 4500mah battery capacity, nfc support, and a 3.5mm headphone jack.