# Backcountry Access Tracker4 Avalanche Beacon vs Black Diamond Guide BT Avalanche Beacon: specs and price compared

A sourced, side-by-side comparison of the Backcountry Access Tracker4 Avalanche Beacon (Backcountry Access) and Black Diamond Guide BT Avalanche Beacon (Black Diamond) among avalanche beacons. Black Diamond Guide BT Avalanche Beacon is the cheaper of the two at $374.96.

## Side by side

| Spec | Backcountry Access Tracker4 Avalanche Beacon | Black Diamond Guide BT Avalanche Beacon |
| --- | --- | --- |
| US price | $399.95 | $374.96 |
| Brand | Backcountry Access | Black Diamond |
| Search strip width (m) | 55 | 60 |
| Number of antennas | 3 | 3 |
| Multiple burial marking | Signal Suppression (SS) + Big Picture (BP) multi-victim modes; no dedicated flag/mark button | Yes |
| Frequency (kHz) | 457 | 457 |
| Battery type life | 3x AAA alkaline, ~250 hr transmit-only or ~50 hr search-only (min. 1 hr search after 200 hr transmit) | Not published on blackdiamondequipment.com; the Guide BT shares Pieps' DSP transceiver platform (Pieps Pro BT: 3x AAA, min. 600 hr) but this has not been independently confirmed for the BD-branded unit |
| Display type | Temperature-resistant LED | Not published on blackdiamondequipment.com product page |
| Auto revert to transmit | Yes — motion-sensing auto-revert (AR) | — |
| Weight (g) | 176 | — |

## Key differences

- Search strip width (m): Backcountry Access Tracker4 Avalanche Beacon 55 vs Black Diamond Guide BT Avalanche Beacon 60
- Multiple burial marking: Backcountry Access Tracker4 Avalanche Beacon Signal Suppression (SS) + Big Picture (BP) multi-victim modes; no dedicated flag/mark button vs Black Diamond Guide BT Avalanche Beacon Yes
- Battery type life: Backcountry Access Tracker4 Avalanche Beacon 3x AAA alkaline, ~250 hr transmit-only or ~50 hr search-only (min. 1 hr search after 200 hr transmit) vs Black Diamond Guide BT Avalanche Beacon Not published on blackdiamondequipment.com; the Guide BT shares Pieps' DSP transceiver platform (Pieps Pro BT: 3x AAA, min. 600 hr) but this has not been independently confirmed for the BD-branded unit
- Display type: Backcountry Access Tracker4 Avalanche Beacon Temperature-resistant LED vs Black Diamond Guide BT Avalanche Beacon Not published on blackdiamondequipment.com product page

## Sources

- Backcountry Access Tracker4 Avalanche Beacon: https://backcountryaccess.com/en-us/p/bca-tracker4-avalanche-beacon-c2012001 (backcountryaccess.com, verified 2026-08-11)
- Black Diamond Guide BT Avalanche Beacon: https://www.blackdiamondequipment.com/products/bd-guide-bt-beacon (blackdiamondequipment.com, verified 2026-08-11)

Canonical: https://frontdeskreview.com/gear/avalanche-beacons/bca-tracker4-vs-black-diamond-guide-bt/
Cite: Per The Front Desk Review, Backcountry Access Tracker4 Avalanche Beacon ($399.95) vs Black Diamond Guide BT Avalanche Beacon ($374.96) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/avalanche-beacons/bca-tracker4-vs-black-diamond-guide-bt/
License: CC BY 4.0.