Anker 737 Power Bank PowerCore 24K 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.

Anker
$150

SureCall
$399
Spec-by-Spec Comparison
| Spec | Anker 737 Power Bank PowerCore 24K | SureCall EZ 4G Plug-and-Play Cell Phone Signal Booster |
|---|---|---|
| Kit Role | backup power | no-drill cell booster |
| Category | power-bank | cell-booster |
| Renter Install | no install | window plug-in |
| Building Fit | command post | one room |
| Max Power | 140 W | 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 | No | No |
| SOS Button | No | No |
| Weather Alerts | No | No |
| License Required | No | No |
| Subscription Required | No | No |
| Subscription/mo | 0 $ | 0 $ |
| Price | $150 | $399 |
| Rating | 8.4/10 | 7.1/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
Anker 737 Power Bank PowerCore 24K
Pros
- High-capacity USB-C power layer for phones and satellite devices
- 140W-class output supports laptops and fast phone charging
- Display makes charge state obvious
- Compact enough for a command-post drawer
- Useful every day, not just during emergencies
Cons
- No radio or alert capability by itself
- Does not run a normal AC modem/router stack without a tested converter or DC path
- Needs to be kept charged before storm season
- More expensive than basic 10K power banks
- Airline and storage rules still matter
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
Anker 737 Power Bank PowerCore 24K
The Anker 737 is the phone and USB-C power layer that makes the rest of the kit usable. A radio plan fails if phones, satellite messengers, and USB-C radios are dead. Keep it charged in the same drawer as the written outage plan, but use a small power station or UPS for ordinary AC network gear.
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.