I-4K, i-Ultra HD, okanye i-2160p sisisombululo sesikrini see-pixels ezingama-3840 x 2160 okanye ii-megapixels ezingama-8.3 ​​zizonke. Njengoko umxholo we-4K usanda kwaye amaxabiso ee-screens ze-4K ehla, isisombululo se-4K sihamba kancinci kodwa ngokuthe chu ukuya endaweni ye-1080p njengomgangatho omtsha.

Ukuba unako ukuthenga izixhobo ezifunekayo ukuze usebenze kakuhle kwi-4K, ngokuqinisekileyo kufanelekile oko.

Ngokungafaniyo nezifinyezo zesisombululo sesikrini esisezantsi eziqulethe ii-pixels ezithe nkqo kwileyibhile yazo, ezifana ne-1080p ye-1920×1080 Full HD okanye i-1440p ye-2560×1440 Quad HD, isisombululo se-4K sithetha malunga ne-4,000 yee-pixels ezithe tye endaweni yexabiso elithe nkqo.

Njengoko i-4K okanye i-Ultra HD ineepikseli ezithe nkqo ezingama-2160, ngamanye amaxesha ikwabizwa ngokuba yi-2160p.

Umgangatho we-4K UHD osetyenziswa kwiiTV, iimonitha, kunye nemidlalo yevidiyo ukwabizwa ngokuba yisisombululo se-UHD-1 okanye se-UHDTV, ngelixa kwimveliso yeefilimu neevidiyo zobungcali, isisombululo se-4K sibizwa ngokuba yi-DCI-4K (Digital Cinema Initiatives) ngee-pixels ezingama-4096 x 2160 okanye ii-megapixels ezingama-8.8 zizonke.

Isisombululo seDigital Cinema Initiatives-4K sinomlinganiselo we-aspect ratio we-256:135 (1.9:1), ngelixa i-4K UHD inomlinganiselo we-16:9 oqhelekileyo.