Walnut vs Aluminum Digital Art Frame: Which Finish Fits Your Home?

KoKonna's solid walnut and black aluminum alloy frames use the same E-Ink Spectra 6 display within each size. The difference is the outer body. Solid walnut has visible grain and a brown edge. Aluminum alloy has a more even black finish and a straighter outline. It is also 10 mm deeper and slightly heavier in both the 7.3-inch and 13.3-inch sizes.

When comparing a wood vs metal picture frame, check the complete dimensions and compare each color with the wall and nearby furniture. A paper outline at the intended location is more useful than a close-up product photo.

Specifications and finish options were checked in August 2026. Confirm the current product page before ordering because availability and included accessories may change.

Quick answer

Choose solid walnut for natural grain and a brown edge beside timber, linen or warm neutral paint. Choose black aluminum alloy if the room already uses black hardware, metal shelving or strong graphic lines.

Neither material changes the image size. On the comparable 7.3-inch and 13.3-inch models, the display, resolution, front width and front height stay the same. The finish, body depth and weight change.

The measurements come from the KoKonna E-Ink frame specification sheet. The 28.5-inch model is currently listed only in aluminum alloy, so the material comparison below applies mainly to the 7.3-inch and 13.3-inch sizes.

What stays the same?

The 7.3-inch versions share a 170.2 × 111.2 mm active display, 480 × 800 resolution and a 226 × 163 mm front outline. Both 13.3-inch versions use a 208.8 × 284.7 mm display, 1200 × 1600 resolution and a 385 × 320 mm front outline. The white mat area also stays the same.

Black aluminum alloy creates stronger contrast against the mat, while solid walnut makes the transition less stark. Material does not add display area or improve resolution.

If the size is still undecided, start with the digital art frame size guide, then return to the finish choice.

Solid walnut: natural variation and a brown edge

KoKonna lists the wood frame as solid walnut. Small differences in color and grain are expected because the surface is natural wood rather than a repeated pattern. The visible grain gives the frame a warmer, more organic look.

Walnut sits comfortably beside visible wood, woven materials and muted wall colors. Its brown edge can also feel less stark around a dark image. Do not expect an exact match with a cabinet or shelf, especially when the room contains several wood stains.

The solid walnut body is 25 mm deep in both comparable sizes. It weighs 0.55 kg at 7.3 inches and 1.32 kg at 13.3 inches.

Black aluminum alloy: an even, dark outline

Black aluminum alloy has a more uniform surface than natural wood. Its dark edge repeats black lamp arms, cabinet handles and other metal details. It also gives photography, typography and high-contrast artwork a clear boundary against the white mat.

The cleaner front outline should not be confused with a thinner body. KoKonna lists the aluminum alloy versions at 35 mm deep, which is 10 mm deeper than solid walnut. They are also slightly heavier: 0.66 kg at 7.3 inches and 1.48 kg at 13.3 inches.

Choose the finish by size and placement

7.3-inch models

At 226 × 163 mm from the front, the 7.3-inch frame is strongly affected by nearby objects. Solid walnut can blend into a wood surface; black aluminum alloy creates more separation on a pale desk or shelf. Walnut may remain more visible on dark furniture.

Check the 7.3-inch product page for the exact accessory list. Do not assume both finishes include the same tabletop support. KoKonna identifies the 7.3-inch solid walnut model as the version supplied with a stand.

13.3-inch models

Treat both 13.3-inch frames as wall-mounted unless KoKonna confirms a compatible stand. Mark the full 385 × 320 mm outline on the wall and view it from the usual position.

At this size, the black edge is easier to notice across the room. Solid walnut relates more directly to a wooden cabinet below it, without needing an exact color match. Leave a visible gap above the furniture so the frame reads as wall-mounted.

Depth and weight from the side

The weight difference is modest. The 10 mm depth difference is easier to notice beside a door casing, shelf edge or another frame, and front-facing photos can hide it. Use hardware suited to the wall and selected frame weight; check the supplied hanging parts for the exact model.

Match the frame to the room and artwork

The frame does not need to repeat every color in the image. One connection is enough:

· Solid walnut can pick up brown, ochre, cream or muted green in portraits and landscapes.

· Black aluminum alloy can repeat dark lines in photography, typography and graphic art.

· A pale image gains a stronger outer boundary from black aluminum alloy.

· A dark image may feel less enclosed by the brown walnut edge, depending on the wall color.

Preview several light and dark images. The artwork will change, but the outer frame will remain.

Four checks before ordering

1. Choose the size before the material; the finish does not change the active display area.

2. Mark the complete outer dimensions at the intended location, including the depth.

3. Compare both frame colors with the wall, furniture and several pieces of artwork.

4. Confirm the finish, mounting parts and tabletop accessories on the exact listing.

Frequently asked questions

Does aluminum alloy have a larger or sharper display?

No. Within each size, solid walnut and aluminum alloy use the same active display dimensions and resolution. The material changes the outer body, depth, weight and color.

Is solid walnut thinner and lighter?

Yes. The 7.3-inch and 13.3-inch solid walnut bodies are 25 mm deep, compared with 35 mm for aluminum alloy. Solid walnut is 0.11 kg lighter at 7.3 inches and 0.16 kg lighter at 13.3 inches.

Do all 7.3-inch KoKonna frames include a tabletop stand?

No. KoKonna identifies the 7.3-inch solid walnut model as including a tabletop stand. Check the current product page for the selected finish.

Is the 28.5-inch frame available in solid walnut?

KoKonna's current specification sheet lists the 28.5-inch model in aluminum alloy. Check the live product page for current finish availability.

Final recommendation

Choose solid walnut for visible grain, a brown edge and the thinner, lighter body. Choose black aluminum alloy for a consistent dark outline that repeats black or metal details. Because the display is the same within each size, choose the size first, check the mounting plan, then compare both finishes at the intended location.