Uk samsung s9: Build Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame. Memory Card slot microSDXC (uses shared SIM slot) - dual SIM model only. Loudspeaker Yes, with stereo speakers. WLAN Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct. Type Li-Ion 3000 mAh, non-removable (11.55 Wh).