Amazon has slashed five 4K monitors to as little as $170.99 during its Prime Big Deal sale, making a sharper Mac setup much cheaper than usual.

The Prime-exclusive discounts run from 19% to 32% off list prices. Screen size, refresh rate, panel type, stand adjustment, and connectivity separate the five monitors more than their shared 4K resolution.

Samsung offers the lowest price, ASUS delivers a larger IPS panel for only a few dollars more, Dell pushes refresh rate to 120Hz, KTC focuses on ergonomics, and LG adds the strongest laptop connectivity of the group.

ASUS VP327Q

The ASUS VP327Q costs $179, down 28% from its $249 list price. The extra $8 over the Samsung gets a 31.5-inch 4K IPS panel instead of a 27-inch display.

ASUS rates the monitor for 99% sRGB coverage and includes HDR10 and Adaptive-Sync support. Two HDMI ports and DisplayPort provide video connections, while built-in stereo speakers eliminate the need for separate speakers for basic audio.

Asus monitor screen displaying two smiling children in a classroom, one holding a magnifying glass, with Asus Eye Care Plus branding and a T?V Rheinland certification logo on the leftASUS VP327Q

The VP327Q also supports VESA mounting and includes flicker-free and low-blue-light features. Its included stand only tilts, which makes a monitor arm worth considering for buyers who need height or swivel adjustment.

Buy ASUS VP327Q monitor

Dell S2725QS

The Dell S2725QS is $229.99, down 23% from its $299.99 list price. Its 27-inch 4K IPS panel reaches 120Hz, twice the maximum refresh rate of the 60Hz Samsung and KTC displays.

Dell pairs the higher refresh rate with AMD FreeSync Premium, 99% sRGB coverage, 350-nit rated brightness, and a 1,500:1 contrast ratio. The combination makes the S2725QS better suited to gaming, and it also makes scrolling and interface movement smoother in everyday Mac use.

Dell 27-inch 4K monitor on a silver stand, displaying a calm blue seascape with glass-like panels and text highlighting IPS panel, 120Hz refresh rate, and audio featuresDell S2725QS

The S2725QS stand supports height adjustment, swivel, and pivot, while built-in speakers handle basic audio. The adjustable stand and built-in speakers give the S2725QS more flexibility out of the box than the less expensive Samsung and ASUS monitors.

Buy Dell S2725QS

KTC H32U6

The 31.5-inch KTC H32U6 is $234.16, down 19% from its $289.99 list price. KTC uses a VA panel rather than IPS and rates the display for a 3,000:1 contrast ratio.

The 4K panel runs at 60Hz, supports HDR10, and covers 99% of the sRGB color gamut. Two HDMI 2.0 ports and one DisplayPort 1.4 connection support 4K input at 60Hz.

Two sleek KTC monitors, front and back; front shows vibrant abstract colors with text: 31.5 inches, 4K UHD, 3000:1 contrast, HDMI, tilt/height/swivel stand on silver rectangular baseKTC H32U6

KTC gives the included stand height, tilt, swivel, and pivot adjustment. Buyers who want a larger 4K workspace without a separate monitor arm get more positioning control than the Samsung or ASUS stands offer..

Buy KTC H32U6

LG 27UP850K-W

The LG 27UP850K-W is $279.99, down 20% from its $349.99 list price. The 27-inch 4K IPS monitor supports VESA DisplayHDR 400 and covers up to 95% of the DCI-P3 color gamut.

LG separates itself from the other four monitors with USB-C data connectivity and up to 90W of power delivery. A compatible MacBook can send video to the display while receiving power over the same cable, reducing the number of connections needed on a desk.

LG UltraFine 27-inch monitor displaying vibrant splashes of paint, with text highlighting 4K UHD 3840x2160 resolution, USB-C connectivity, DisplayHDR400 support, and built-in speaker on a silver standLG 27UP850K-W

The monitor also includes DisplayPort, two HDMI ports, two USB 3.0 ports, a headphone jack, and built-in stereo speakers. Its stand supports height adjustment, tilt, and pivot.

Buy LG 27UP850K-W

Samsung ViewFinity S7

The 27-inch Samsung ViewFinity S7 S71H is $170.99, down 32% from its $249.99 list price. The monitor uses a 3840-by-2160 IPS panel and runs at up to 60Hz.

Samsung ViewFinity S7 monitor on a simple stand, showing colorful abstract graphics and icons highlighting features: 27-inch size, 4K UHD resolution, IPS panel, and HDR supportSamsung ViewFinity S7

Samsung includes HDR10 support and says the display can reproduce more than 1 billion colors. Eye Saver Mode reduces blue light and screen flicker for longer work sessions.

HDMI and DisplayPort handle video connections, and Samsung also includes a headphone jack. The stand isn't height adjustable, so the ViewFinity S7 trades positioning flexibility for the lowest price in this group.

Buy Samsung ViewFinity S7

The five deals target different needs rather than offering five interchangeable 4K screens. Samsung has the lowest price, while ASUS offers the largest IPS display for under $200 and Dell delivers the highest refresh rate.

KTC pairs a larger panel with a fully adjustable stand, while LG offers the strongest connectivity for a MacBook-centered setup. Amazon lists all five discounts as Prime-exclusive offers, and deal prices can change as the sale progresses.