System Activity Monitor Ultimate is the application providing you all information about your device - hardware, operating system, processor, memory, GPU, network interface, storage and battery, including OpenGL powered visual representation in real time.

Hardware information:
- iDevice name
- Screen resolution
- Screen size
- Retina capability
- Pixel density
- Aspect ratio

Operating System:
- Version
- Build
- Revision
- Kernel information
- Safe Boot
- Boot time
- Uptime
- Tick frequency
- Operating system limits: processes, files, VNodes

CPU:
- Name
- Coprocessor
- Architecture
- Physical and logical core count
- Frequency
- L1, L2 cache size
- Endianess

RAM:
- Total memory
- Memory type
- Memory usage: wired, active, inactive, free
- Page-ins
- Page-outs
- Page-faults

GPU:
- Chip name
- Supported OpenGL version
- OpenGL vendor
- Supported OpenGL extensions

Network:
- Cellular technology (LTE, Edge, GPRS...)
- External IP
- Internal IP
- Netmask
- Broadcast IP
- Total WiFi and cellular traffic since boot.

Connections:
- List active connections
- Connection local and remote IP
- Connection local and remote port
- Connection status
- Connection download and upload traffic

Storage:
- Total available space on device
- Free space
- Used space
- Number of songs
- Number of pictures and total size on disk
- Number of videos and total size on disk

Battery:
- Battery capacity
- Battery voltage
- Battery status
- Current battery level

DISCLAIMER: The app might prompt you to allow access your photos in order to show additional information under "Storage" section.