I have big experience in mobile app testing and lots of real devices available:
Huawei P8 Lite (2017) / GR3 (2017), Android 7.0
Samsung Galaxy A3 (2016), Android 5.1.1
Samsung Galaxy J7 (2016), Android 6.0.1
Samsung Galaxy Tab E 9.6, Android 4.4.4
Sony Experia XA1 G3112, Android 7.0
Samsung Galaxy J3, Android 5.1.1
Samsung Galaxy J5, Android 6.0.1
Samsung Galaxy Tab SMT560, Android 4.4.4
Apple iPhone 6S Plus, iOS 10.3.2
Apple iPhone 6, iOS 10.1.1
Apple iPhone 5S, iOS 9.3.1
Ipad Air2