ACR ResQLink 400 GPS Personal Locator Beacon vs SureCall EZ 4G Plug-and-Play Cell Phone Signal Booster
Head-to-head spec comparison to help you pick the right kit component for your needs.

ACR
$300

SureCall
$399
Spec-by-Spec Comparison
| Spec | ACR ResQLink 400 GPS Personal Locator Beacon | SureCall EZ 4G Plug-and-Play Cell Phone Signal Booster |
|---|---|---|
| Kit Role | SOS beacon | no-drill cell booster |
| Category | satellite | cell-booster |
| Renter Install | no install | window plug-in |
| Building Fit | evacuation | one room |
| Max Power | N/A | N/A |
| Channels | N/A | N/A |
| Clear LOS Range | N/A | N/A |
| Coverage | N/A | 2000 sq ft |
| Battery Life | 24 hrs | N/A |
| Water Resistant | Yes | No |
| SOS Button | Yes | No |
| Weather Alerts | No | No |
| License Required | No | No |
| Subscription Required | No | No |
| Subscription/mo | 0 $ | 0 $ |
| Price | $300 | $399 |
| Rating | 8.0/10 | 7.1/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
ACR ResQLink 400 GPS Personal Locator Beacon
Pros
- No monthly subscription
- True emergency beacon path outside consumer cell networks
- Long shelf-life battery
- Waterproof and rugged
- Useful for flood, coastal, and evacuation scenarios
Cons
- Not a messaging device
- Activation is for real rescue emergencies only
- No routine family updates
- Overkill for ordinary apartment power outages
SureCall EZ 4G Plug-and-Play Cell Phone Signal Booster
Pros
- Cleanest no-drill apartment booster in the catalog
- Window-unit layout avoids roof, pole, or exterior antenna mounting
- All-carrier support for one shared command-post room
- Good fit when one window has signal and the apartment interior does not
- Simpler install story than multi-room booster kits
Cons
- Only works when the window already receives usable signal
- Amazon listing has weaker customer ratings than weBoost options
- Needs carrier registration/consent before use, and boosted calls can have less accurate E911 location data
- Window unit and indoor antenna still need meaningful separation to avoid a weak setup
- Limited one-room role, not a whole-apartment coverage plan
- Still will not help during a full carrier tower outage
Our Verdicts
ACR ResQLink 400 GPS Personal Locator Beacon
The ResQLink 400 is not a chat device. It is the no-subscription rescue beacon for evacuation or flood-risk households that want one serious emergency trigger without maintaining a monthly satellite plan.
SureCall EZ 4G Plug-and-Play Cell Phone Signal Booster
The SureCall EZ 4G is the strictest renter/no-drill booster in the OutageKit lineup, but it is a secondary pick. It earns a place when lease rules are strict, one window has usable signal, the indoor antenna can be separated properly, and the goal is one registered phone station instead of whole-home coverage. Choose weBoost Home Studio for stronger brand confidence; choose the EZ 4G only when reversible window placement is the deciding constraint.