# Portkeys BM5 III 5.5in Touchscreen Monitor vs Lilliput A5 5in Camera-Top HDMI Monitor: specs and price compared

A sourced, side-by-side comparison of the Portkeys BM5 III 5.5in Touchscreen Monitor (Portkeys) and Lilliput A5 5in Camera-Top HDMI Monitor (Lilliput) among on camera monitors.

## Side by side

| Spec | Portkeys BM5 III 5.5in Touchscreen Monitor | Lilliput A5 5in Camera-Top HDMI Monitor |
| --- | --- | --- |
| US price | $499 | not published |
| Brand | Portkeys | Lilliput |
| Screen size (in) | 5.5 | 5 |
| Resolution | 1920x1080 | 1920x1080 |
| Brightness (nits) | 2200 | 400 |
| HDMI sdi io | 1x 3G-SDI in, 1x HDMI in, 1x 3G-SDI out (cross-conversion) | 1x HDMI 1.4 in (accepts up to 4096x2160 passthrough), 1x HDMI 1.4 loop out; no SDI |
| HDR lut support | 3D LUT monitoring/output; custom LUT load via USB-A | — |
| Touchscreen | Yes | No |
| Battery mount | Built-in Sony NP-F style battery plate | Dual-purpose plate: Sony NP-F series and Canon LP-E6; hot-shoe camera mount |
| Weight (g) | 351 | 118 |

## Key differences

- Screen size (in): Portkeys BM5 III 5.5in Touchscreen Monitor 5.5 vs Lilliput A5 5in Camera-Top HDMI Monitor 5
- Brightness (nits): Portkeys BM5 III 5.5in Touchscreen Monitor 2200 vs Lilliput A5 5in Camera-Top HDMI Monitor 400
- HDMI sdi io: Portkeys BM5 III 5.5in Touchscreen Monitor 1x 3G-SDI in, 1x HDMI in, 1x 3G-SDI out (cross-conversion) vs Lilliput A5 5in Camera-Top HDMI Monitor 1x HDMI 1.4 in (accepts up to 4096x2160 passthrough), 1x HDMI 1.4 loop out; no SDI
- Touchscreen: Portkeys BM5 III 5.5in Touchscreen Monitor Yes vs Lilliput A5 5in Camera-Top HDMI Monitor No
- Battery mount: Portkeys BM5 III 5.5in Touchscreen Monitor Built-in Sony NP-F style battery plate vs Lilliput A5 5in Camera-Top HDMI Monitor Dual-purpose plate: Sony NP-F series and Canon LP-E6; hot-shoe camera mount
- Weight (g): Portkeys BM5 III 5.5in Touchscreen Monitor 351 vs Lilliput A5 5in Camera-Top HDMI Monitor 118

## Sources

- Portkeys BM5 III 5.5in Touchscreen Monitor: https://www.portkeys.com/products/bm5-iii (portkeys.com, verified 2026-08-12)
- Lilliput A5 5in Camera-Top HDMI Monitor: https://www.lilliput.com/a5-product/ (lilliput.com, verified 2026-08-12)

Canonical: https://frontdeskreview.com/gear/on-camera-monitors/portkeys-bm5-iii-vs-lilliput-a5/
Cite: Per The Front Desk Review, Portkeys BM5 III 5.5in Touchscreen Monitor ($499) vs Lilliput A5 5in Camera-Top HDMI Monitor (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/on-camera-monitors/portkeys-bm5-iii-vs-lilliput-a5/
License: CC BY 4.0.