I-4K, i-Ultra HD, noma i-2160p iyisinqumo sokubonisa samaphikiseli angu-3840 x 2160 noma ama-megapixel angu-8.3 esewonke.Ngokuqukethwe okwengeziwe kwe-4K okutholakalayo nezintengo zezibonisi ze-4K zehla, ukulungiswa kwe-4K kuhamba kancane kodwa kusendleleni yokushintsha i-1080p njengezinga elisha.

Uma ukwazi ukukhokhela ihadiwe edingekayo ukuze isebenze i-4K ngokushelela, ikufanele ngempela.

Ngokungafani nezifinyezo zokulungiswa kwesikrini eziphansi eziqukethe amaphikseli aqondile kulebula yazo, njengokuthi 1080p ye-1920×1080 Full HD noma i-1440p ye-2560×1440 Quad HD, ukulungiswa kwe-4K kusho cishe amaphikseli avundlile angu-4,000 esikhundleni senani elime mpo.

Njengoba i-4K noma i-Ultra HD inamaphikseli aqondile angama-2160, kwesinye isikhathi ibizwa nangokuthi i-2160p.

Izinga le-4K UHD elisetshenziselwa ama-TV, iziqapheli, nemidlalo yevidiyo liphinde libizwe ngokuthi ukulungiswa kwe-UHD-1 noma kwe-UHDTV, kuyilapho ekukhiqizweni kwefilimu namavidiyo okuphrofeshinali, ukulungiswa kwe-4K kubhalwe ngokuthi DCI-4K (Digital Cinema Initiatives) ne-4096. x 2160 pixels noma 8.8 megapixels esewonke.

Ukulungiswa kwe-Digital Cinema Initiatives-4K kufaka phakathi ukubukeka kwesilinganiso okungu-256:135 (1.9:1), kuyilapho i-4K UHD inesilinganiso esivame kakhulu esingu-16:9.