Miracast:
Display screen of smart phone, Tablet, Notebook, Desk-top PC on TV, Big screen or Projector in real-time
Connect through WIFi, Easy-to-use
Mirroring: Display APP, Video call and online game...ect in real-time
Wireless stream picture, video and Audio to TV, Big screen or projector
 
DLNA:
Stream all Video, Audio and picture from Smart phone, Tablet, Notebook, Desk-top PC, Big screen or Projestor
Support Full HD 1080p Video and Audio
You can still surf the internet whrn stream online video and audio
People can take turns to share Video, Audio and picture for entertainment

Miracast is a peer-to-peer wireless screencast standard formed via Wi-Fi Direct connections in a manner similar to Bluetooth. It enables wireless or wired delivery of compressed standard or high-definition video to or from desktops, tablets, mobile phones, etc. Both the sending and receiving devices must be Miracast certified for the technology to work. However, to stream music and movies to a non-certified device there will be Miracast adapters available that plug into HDMI or USB ports.[10][1] Miracast allows a portable device or computer to securely send up to 1080p HD video and 5.1 surround sound (AAC and AC3 are optional codecs, mandated codec is LPCM — 16 bits 48 kHz 2 channels)[2]. However, it works only over Wi-Fi and cannot be used to stream to a router access point.[3][4][5][6][7] It was created by the Wi-Fi Alliance and billed as an open alternative to Apple's AirPlay Mirroring. It allows users to, for example, echo display from a phone or tablet made by Company A onto a TV made by Company B, share a laptop screen with the conference room projector in real-time, and watch live programs from a home cable box on a tablet. Miracast sends up to 1080p HD video and 5.1 surround sound.