4K, Ultra HD, ma ọ bụ 2160p bụ mkpebi ngosipụta nke pikselụ 3840 x 2160 ma ọ bụ megapixels 8.3 n'ozuzu ya. Ebe ọ bụ na ọdịnaya 4K na-abawanye ụba ma ọnụ ahịa ngosipụta 4K na-ebelata, mkpebi 4K na-aga n'ihu nwayọ mana na-aga n'ihu iji dochie 1080p dị ka ọkọlọtọ ọhụrụ.

Ọ bụrụ na ị nwere ike ịzụta ngwaike achọrọ iji rụọ ọrụ 4K nke ọma, ọ bara uru nke ukwuu.

N'adịghị ka obere mkpirisi mkpebi ihuenyo dị ala nke nwere pikselụ kwụ ọtọ na akara ha, dịka 1080p maka 1920 × 1080 Full HD ma ọ bụ 1440p maka 2560 × 1440 Quad HD, mkpebi 4K pụtara ihe dị ka pikselụ kwụ ọtọ 4,000 kama uru kwụ ọtọ.

Ebe ọ bụ na 4K ma ọ bụ Ultra HD nwere pikselụ kwụ ọtọ 2160, a na-akpọkwa ya mgbe ụfọdụ 2160p.

A na-akpọkwa ọkọlọtọ 4K UHD nke eji eme ihe na TV, ihe nlele, na egwuregwu vidiyo mkpebi UHD-1 ma ọ bụ UHDTV, ebe na mmepụta ihe nkiri na vidiyo ọkachamara, a na-akpọ mkpebi 4K DCI-4K (Digital Cinema Initiatives) nke nwere pikselụ 4096 x 2160 ma ọ bụ megapixels 8.8 n'ozuzu ya.

Mkpebi Digital Cinema Initiatives-4K nwere oke akụkụ 256:135 (1.9:1), ebe 4K UHD nwere oke 16:9 karịa.