Realme xt = Realme k5 = Realme k1 = Oppo reno Z = Oppo r15x = Realme x2 = Oppo K1

Here’s the list of Realme XT, Realme K5, Realme K1, Oppo Reno Z, Oppo R15x, Realme X2, and Oppo K1 with their respective model names:

1. Realme XT

Model Name: Realme XT

2. Realme K5

Model Name: Realme K5
(Note: There is no "Realme K5" released by Realme; it seems like you might have meant Realme K1. There could be confusion around the name. Please clarify if you mean another device.)

3. Realme K1

Model Name: Realme K1

4. Oppo Reno Z

Model Name: Oppo Reno Z

5. Oppo R15x

Model Name: Oppo R15x

6. Realme X2

Model Name: Realme X2

7. Oppo K1

Model Name: Oppo K1

This list includes the model names for each device. If you meant something else with the Realme K5 or need further clarification, feel free to let me know!