The Xperia M4 Aqua from Sony was first released in 2015

Model ID: E2303, E2353, E2306
Qualcomm MSM8939 Snapdragon 615 (28 nm)
Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53) with 8GB 2GB RAM, 16GB 2GB RAM (E2306)
OS: Android 5.0.1 (Lollipop), upgradable to 6.0.1 (Marshmallow)
Display: 5.0 inches, 720 x 1280 pixels
Rear Camera: 13 MP
LED flash, HDR, panorama
Front Camera: 5 MP

Battery: Li-Ion 2400 mAh, non-removable
Talk Time: Up to 12 h 40 min (2G) / Up to 13 h 20 min (3G)
Network: GSM / HSPA / LTE
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot
Color Options: Black, White, Coral, Silver