This is an excellent mcpe texture packs 3D choice for low-end/mid/high machines.
It lacks the realistic 3D feel to it, however, it has some of the 256x 3D blocks in it to make it look more realistic.
These 3D textures are designed for smooth 3D display on weak machines.

Another mcpe mod list on this app:
- Minecraft 3d 64x Texture Pack
- Minecraft 3d 128x Texture Pack
- Minecraft 3d 256x Texture Pack
- Defscape Texture Pack 32 x 32 (Low-End Devices)
- Defscape Texture Pack 64 x 64 (High-End Devices)
- Flows Hd Shader Texture Pack Low 32 X 32
- Flows Hd Shader Texture Pack Med 64 X 64
- Flows Hd Shader Texture Pack High 128 X 128

NOTE: This App requires the Minecraft official client on android.
https://play.google.com/store/apps/details?id=com.mojang.minecraftpe

Disclaimer: This application is not affiliated with Mojang AB, the Minecraft name, the Minecraft brand, and all Minecraft property is the property of Mojang AB or a respected owner. According to http://account.mojang.com/documents/brand_guidelines