When it comes to charging your iPhone quickly and safely, the choice of charger matters more than many people realize. Apple’s own chargers are reliable, but there are plenty of third-party options on the market that claim to deliver fast charging, compact design, and better value. Among them, the Anker Nano Charger has become a popular pick for iPhone users who want efficient and portable charging. But is the Anker Nano Charger truly good for iPhone fast charging? Let’s take a detailed look, comparing real-world performance, compatibility, and what sets it apart from other alternatives.
Understanding Fast Charging For Iphone
Before diving into how the Anker Nano performs, it’s important to know what fast charging means for iPhones. Apple introduced fast charging with the iPhone 8 and later models. With the right charger and cable, your iPhone can go from 0% to about 50% in 30 minutes. This is possible by using a higher wattage charger (at least 18W) and a USB-C to Lightning cable.
Apple’s official 5W charger, included with many older iPhones, is much slower. The company now recommends a 20W USB-C power adapter for fast charging. Any charger that meets or beats these specs, and follows USB Power Delivery (USB-PD) standards, can provide true fast charging.
What Is The Anker Nano Charger?
The Anker Nano Charger (sometimes called the Anker PowerPort III Nano) is a compact USB-C wall charger designed for fast charging smartphones, including the iPhone. It’s about the size of a classic 5W Apple charger but delivers much more power.
Key specs include:
- Output: 20W (USB-C Power Delivery)
- Size: Ultra-compact (similar to Apple’s 5W charger)
- Compatibility: Works with iPhone 8 and newer, iPad, AirPods, and many Android phones
- Safety features: Over-voltage, over-current, and temperature protection
This charger is designed for easy portability, making it a favorite for travelers or those who want to keep their bag light.
How Does The Anker Nano Compare To Apple’s 20w Charger?
To decide if the Anker Nano is good for iPhone fast charging, it’s worth comparing it directly to Apple’s 20W USB-C charger, which is the standard recommendation from Apple.
| Feature | Anker Nano Charger | Apple 20W Charger |
|---|---|---|
| Output Power | 20W | 20W |
| Size | 1.1 x 1.1 x 1.2 in (very compact) | 1.7 x 1.7 x 1.1 in (bulkier) |
| Weight | About 1 oz | About 2.2 oz |
| Price | Often $13–$17 | Usually $19–$29 |
| USB Port Type | USB-C | USB-C |
| Warranty | 18 months | 12 months |
Key Insight: The Anker Nano matches Apple’s 20W charger in power but wins in size, weight, and often price.
Real-world Charging Speed: Does Anker Nano Deliver?
Let’s look at how the Anker Nano performs with actual iPhones. When paired with a genuine USB-C to Lightning cable, the Anker Nano can charge most modern iPhones from 0% to about 50% in just 30 minutes, just like Apple’s official charger.
This matches the maximum speed supported by current iPhones.
For example:
- IPhone 13/14/15 Series: Charges to 50% in about 27–30 minutes with Anker Nano.
- IPhone 12 Series: Similar results, 50% in about 28–30 minutes.
- Older models (iPhone 8/SE 2nd gen): Also support fast charging, with 50% reached in about 30 minutes.
Charging from 50% to 100% is slower (as with any charger) because iPhones reduce charging speed to protect battery health. This is the same for both Anker and Apple’s charger.
Non-obvious insight: Some users think a higher wattage charger (like 30W or 65W) will charge their iPhone faster. However, iPhones are designed to draw only the power they need (usually max 20W), so using a higher wattage charger does not speed up charging. The Anker Nano’s 20W is the sweet spot for iPhone fast charging.
Safety And Reliability: Is Anker Nano Trustworthy?
When using a third-party charger, safety is a top concern. Anker is a well-known brand with a strong reputation for making safe, reliable charging products. The Nano Charger includes several built-in protections:
- Short-circuit protection: Prevents damage in case of faults
- Overvoltage protection: Keeps voltage within safe limits
- Temperature control: Prevents overheating
Anker also follows international safety certifications, like UL and CE. In day-to-day use, there are very few reports of overheating or device damage with the Nano. Some cheaper, off-brand chargers cut corners on safety, but Anker’s products have consistently passed independent safety tests.
Practical tip: Always use a high-quality USB-C to Lightning cable with your Anker Nano. Poor-quality cables can cause overheating or slow charging, even with a good charger.
Compatibility With Other Apple Devices
The Anker Nano isn’t just for iPhones. It can also charge other Apple devices that support USB Power Delivery, such as:
- IPad Pro, Air, and Mini: Charges at fast speeds (up to their max supported wattage)
- AirPods: Charges at normal speed (fast charging is not supported for AirPods)
- Apple Watch: Charges at standard speed (not fast charge)
For iPad Pro (especially the 12. 9-inch), the Anker Nano will charge at a reasonable speed, but a higher wattage charger (like 30W) may be slightly faster for those tablets. For daily use, the Nano is still a good all-rounder.
Portability: The Nano’s Biggest Advantage
One of the Anker Nano’s top features is its tiny size. It’s much smaller and lighter than most fast chargers, including Apple’s own. This makes it ideal for travel, commuting, or carrying in a small bag or purse.
For people who like minimal, clutter-free setups, the Nano’s design is a real plus. It fits even in crowded power strips or wall outlets where larger chargers might block other plugs.
Durability And Build Quality
The Anker Nano has a solid plastic shell that feels sturdy. The prongs are fixed (not foldable), which helps keep the charger compact but may be less ideal for some travelers who prefer foldable prongs. Over time, most users report that the charger continues to work reliably, with very few cases of wear or damage.
Anker provides an 18-month warranty, which is longer than Apple’s 12-month warranty for chargers. If you have any issues, Anker’s customer support is responsive and often sends replacements quickly.

Value For Money: Is The Anker Nano Worth It?
Looking at price, performance, and reliability, the Anker Nano offers excellent value for money. It’s usually cheaper than Apple’s 20W charger, especially if you find it on sale. Considering you get the same fast charging, a smaller size, and a longer warranty, the Nano is a smart buy for most iPhone users.
However, the Nano does not come with a cable. You’ll need to buy a USB-C to Lightning cable separately if you don’t already have one. Apple’s cables are reliable, but Anker and other brands also make MFi-certified cables that work just as well.
Common mistake: Some buyers forget to check if their existing cable supports fast charging. Only USB-C to Lightning cables (not regular USB-A to Lightning) can deliver fast charging when paired with the Nano.
Comparing Anker Nano With Other Popular Third-party Chargers
The market is full of compact chargers, but not all are created equal. Here’s a side-by-side look at how the Anker Nano stacks up against similar products from other reputable brands.
| Brand & Model | Output Power | Size | Warranty | Price Range |
|---|---|---|---|---|
| Anker Nano | 20W | Ultra-compact | 18 months | $13–$17 |
| Apple 20W | 20W | Standard | 12 months | $19–$29 |
| Aukey Minima | 20W | Compact | 24 months | $12–$16 |
| Belkin Boost Charge | 20W | Compact | 24 months | $17–$25 |
| Spigen ArcStation | 20W | Ultra-compact | 24 months | $14–$20 |
Insight for beginners: While there are several good alternatives, always choose brands with strong safety records and warranty support. Cheaper, unknown brands may not offer the same protection for your device.
What About Charging Older Iphones?
If you have an iPhone 7 or earlier, your phone does not support USB Power Delivery fast charging. However, you can still use the Anker Nano to charge these models safely, but you won’t see the dramatic speed boost you get with newer iPhones.
The charger will simply deliver as much power as your phone can handle.
Tip: Even if you upgrade to a new iPhone later, the Anker Nano will continue to work with it.
Environmental Considerations
Apple stopped including chargers with new iPhones to reduce electronic waste. Buying a high-quality charger like the Anker Nano can actually help the environment, because it’s built to last longer and avoids the need for replacement. Cheaper chargers may break down faster and end up as waste.
If you already have a USB-C charger from another device (like an iPad or MacBook), you may not need to buy a new charger at all. Always check what you have before buying.
How To Maximize Fast Charging With Anker Nano
Getting the best results from the Anker Nano is simple, but there are a few tips:
- Use an MFi-certified USB-C to Lightning cable. This ensures full compatibility and safety.
- Plug directly into a wall outlet. Charging from a power strip or extension cord may reduce speed if there’s interference.
- Keep your iPhone updated. Software updates often improve charging efficiency.
- Remove thick cases. Some very thick cases can cause your phone to get warm and slow charging.
- Avoid using your phone while charging. Heavy use (like gaming) can slow down the charging process.
Future-proofing: Will Anker Nano Work With Future Iphones?
The Anker Nano uses the universal USB Power Delivery (USB-PD) standard, which is becoming the industry norm for fast charging. Unless Apple makes a major change, the Nano should work with future iPhones as well. In fact, USB-C is being adopted more widely, so your Nano will likely work with other gadgets you buy later.
If Apple ever increases the fast charging limit above 20W for iPhones, you might want a higher-wattage charger in the future. But for now, the Nano is ideal for every recent iPhone.
Case Study: User Experiences And Long-term Reviews
User reviews for the Anker Nano are overwhelmingly positive. Many people praise its:
- Tiny size and light weight
- Consistent fast charging
- Sturdy build quality
- No overheating or safety issues
Some users mention the fixed prongs as a small downside, especially for travel, but it’s a trade-off for the tiny size. A few people have reported the charger stopped working after a year or more, but Anker’s warranty support resolved most cases quickly.
Long-term tip: Unplug the charger when not in use to extend its life. Even high-quality chargers can wear out faster if left plugged in 24/7.
When Might The Anker Nano Not Be The Best Choice?
While the Anker Nano is a great fit for most iPhone users, it’s not perfect for every situation:
- If you want to charge multiple devices at once: The Nano has only one port. Look for chargers with two or more ports if you need to charge your iPhone and AirPods or iPad at the same time.
- If you need foldable prongs: Some travelers prefer chargers with foldable plugs to avoid damage in bags.
- If you need more than 20W: For charging bigger devices like laptops or large iPads at full speed, a higher-wattage charger is better.
For most iPhone owners, though, these limitations are minor.
Expert Opinions And Independent Tests
Professional reviewers and tech websites have tested the Anker Nano against Apple’s charger and other brands. The results consistently show that Anker matches Apple’s charging speed, stays cool, and passes safety checks. Trusted sites like Wirecutter, CNET, and TechRadar have named the Anker Nano one of the best third-party chargers for iPhone.
For more technical details, you can check the official USB Power Delivery standard on Wikipedia.
Frequently Asked Questions

What Iphones Support Fast Charging With The Anker Nano?
All iPhones from the iPhone 8 and newer support fast charging with the Anker Nano when you use a USB-C to Lightning cable. This includes the iPhone 8, X, XR, XS, 11, 12, 13, 14, 15 series, and SE (2nd and 3rd generation).
Does The Anker Nano Come With A Cable Included?
No, the Anker Nano charger does not include a cable. You will need a USB-C to Lightning cable for fast charging your iPhone. Make sure the cable is MFi-certified for best results.
Can I Use The Anker Nano To Charge My Ipad Or Macbook?
The Anker Nano can fast charge iPad models that support USB Power Delivery, like iPad Pro, Air, and Mini. However, it is not powerful enough for MacBooks or other laptops; those need at least a 30W or higher charger.
Is It Safe To Leave The Anker Nano Plugged In All The Time?
Yes, the Anker Nano is designed to be safe. But for maximum lifespan, it’s a good idea to unplug it from the wall when not in use, especially if you won’t be charging for days at a time.

How Can I Tell If My Iphone Is Fast Charging?
You can check by plugging your iPhone into the Anker Nano with a USB-C to Lightning cable. If your phone goes from 0% to around 50% in about 30 minutes, it’s fast charging. There’s no special icon on the screen, but you’ll notice the speed.
Final Thoughts
The Anker Nano Charger is a top choice for iPhone users who want fast charging in a tiny, travel-friendly package. It matches Apple’s official charger in speed and safety, often at a lower price and with a smaller footprint. As long as you pair it with a good USB-C to Lightning cable, you’ll get the best charging experience your iPhone can offer. For most people, the Anker Nano is not just good—it’s one of the best options for fast, reliable iPhone charging today.