Design and Build
The design of the NIU Niutek 4.0D reflects its utilitarian ethos, emphasized by its compact dimensions of 127 x 62.9 x 9.9 mm, which make it quite portable for daily use. The phone weighs 131 grams, striking a balance between lightweight and substantial enough to feel secure in hand. The dual SIM feature, supporting Mini-SIM cards, is a practical addition for users managing two numbers, which is common in emerging markets.