Griffin PowerBlock 20W Wall Charger with Smartwatch Charger: Hands-On Review

In the world of charging accessories, finding a single wall charger that can handle both your smartphone and your smartwatch is a game-changer. The Griffin PowerBlock 20W Wall Charger with Smartwatch Charger promises to simplify your daily charging routine by combining a fast USB-C port with a dedicated smartwatch charging puck. We spent a week using it with various devices to see if it lives up to the hype.

This review covers the design, performance, and real-world usability of the PowerBlock 20W. Whether you're an iPhone user or have a Samsung Galaxy, we'll help you decide if this compact charger deserves a spot on your nightstand or desk.

Design and Build Quality

The Griffin PowerBlock 20W Wall Charger with Smartwatch Charger sports a compact, rectangular design that won't hog your power strip. The white glossy finish matches Apple's aesthetic, making it a natural fit for iPhone users. On the front, you'll find a single USB-C port that delivers up to 20W of power, while the top houses a foldable smartwatch charging puck that pops out when needed.

The build quality is solid, with a sturdy feel that inspires confidence. The folding plug is a nice touch for travel, and the smartwatch puck has a magnetic surface that securely holds compatible watches. The charger weighs just a few ounces, so it's easy to toss into a bag without adding bulk.

• Compact and travel-friendly design
• USB-C port with 20W output
• Integrated smartwatch charging puck
• Foldable plug for easy storage

Charging Performance: Smartphone and Smartwatch

We tested the USB-C port with an iPhone 15 Pro and a Samsung Galaxy S24 Ultra. The PowerBlock 20W delivered a full charge to the iPhone in about 1 hour and 45 minutes, which is typical for a 20W charger. The Galaxy S24 Ultra also charged quickly, gaining 50% in just 30 minutes. While it doesn't support the fastest charging speeds of some flagship phones, it's perfectly adequate for overnight charging or top-ups during the day.

The smartwatch charging puck worked flawlessly with an Apple Watch Series 9 and a Samsung Galaxy Watch 6. The magnetic alignment is strong, and the watch snaps into place with a satisfying click. Charging speeds were comparable to using the original watch charger, taking about 1.5 hours to go from 0 to 100% on the Apple Watch. The integrated design means you don't need to carry a separate cable, which is a huge convenience.

• Fast charging for iPhone and Samsung Galaxy devices
• Smartwatch puck charges Apple Watch and Galaxy Watch
• No need for extra watch charging cable

Compatibility and Versatility

The PowerBlock 20W is not just for phones and watches. The USB-C port can also charge earbuds, tablets, and other small devices. We used it to charge a pair of AirPods Pro and an iPad mini, and both charged without issues. The 20W output is enough for most devices, though larger tablets might charge slower than with a higher-wattage charger.

For those who want to protect their devices while charging, consider pairing this charger with a rugged case like the Forme Protective for Samsung Galaxy S24 Ultra or a MagSafe case like the Forme for MagSafe for iPhone 16. These cases allow you to charge wirelessly or via cable without removing the case, making your charging routine even smoother.

• Charges phones, watches, earbuds, and tablets
• Works with both Apple and Samsung smartwatches
• Pair with protective cases for a complete setup

Comparison with Other Chargers

Compared to standard 20W wall chargers that lack a smartwatch puck, the PowerBlock 20W is a clear winner for convenience. You save a power outlet and reduce cable clutter. We also compared it to the Griffin PowerBlock Slim 45W Wall Charger, which offers more power for laptops and tablets but doesn't have the integrated smartwatch charger. If you need to charge a laptop, the 45W model is better, but for everyday phone and watch charging, the 20W version is more compact and purpose-built.

Another option is the Griffin 4' USB-C to USB-C Cable with Tethered Lightning Tip, which can be used with the PowerBlock 20W to charge both iPhone and Android devices. The tethered Lightning tip is a clever solution for those who switch between devices, ensuring you always have the right connector.

• More convenient than carrying separate chargers
• Less powerful but more portable than the 45W model
• Works with Griffin cables for added flexibility

Final Verdict

The Griffin PowerBlock 20W Wall Charger with Smartwatch Charger is an excellent addition to any charging setup. Its compact design, reliable performance, and integrated smartwatch charger make it a standout in the charging accessories market. While it may not be the fastest charger for large tablets or laptops, it excels at its intended purpose: keeping your phone and watch powered up with minimal fuss.

If you're in the market for a new charger, this is a solid choice. For those who need more power, the 45W version is worth considering, but for most users, the 20W PowerBlock is all you need.

• Ideal for iPhone and Samsung users
• Saves space and reduces clutter
• Great value for the convenience it offers

Ready to simplify your charging routine? Check out the Griffin PowerBlock 20W Wall Charger with Smartwatch Charger today and see how it can make your life easier. With its compact design and dual functionality, it's a must-have for anyone looking to streamline their charging setup.