INIU Portable Charger, Pocket Size 5000mAh 20W PD Fast Charging Power Bank, with Built-in USB C Cable and Watch Charger, Keychain Battery Pack, Travel Charger for iPhone 17 16 15, Apple Watch, etc.
Original price was: $35.70.$22.49Current price is: $22.49.
Price: $35.70 - $22.49
(as of Sep 28, 2025 01:23:26 UTC – Details)
Product description
1 Wide Compatibility
2 Build for Convenience
3 Advanced Safety
How should I properly charge my apple watch?
To ensure stable charging, lay your watch flat on the power bank. Then, press the button to activate watch charging.
Why my power bank provide fewer charges than expect?
External batteries typically supply 60%-70% power to devices, with 30%-40% lost to heat and voltage conversion. So a fully charged INIU 5000mAh power bank can offer an estimated 3000mAh-3500mAh to your devices.
How to calculate the possible number of charges?
“Industry-standard formula: (Power bank capacity × 60%) ÷ Device battery capacity ≈ Number of Charges.
eg. (5000mAh power bank × 0.6) ÷ 3279mAh iPhone 14 battery ≈ 0.9 charge”
Is the product safe to use when it gets warm?
Slight warming during wireless charging is normal, especially under heavy use. The product meets international safety standards to ensure safe use.
Does it support pass-through charging?
Yes, our power bank supports pass-through charging. You can charge both the power bank and connected devices simultaneously.
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Customer Reviews
4.5 out of 5 stars 233
4.3 out of 5 stars 1,047
4.4 out of 5 stars 338
4.5 out of 5 stars 571
Price
$22.49$22.49
$35.81$35.81
$29.99$29.99
$29.69$29.69
Key Features
5000mAh for Apple Watch
10000mAh MagSafe
5000mAh MagSafe
10000mAh Ultra Small
Wireless Output
5W
15W
15W
✘
Charging Ports
USB-C*1 + Built-in USB-C cable
USB-C*2
USB-C*1
USB-C*2+USB-A*1
Qi2 Ceritification
✘
✔
✔
✘
Compatible Devices
iPhone/AirPods/Apple Watchs
iPhone 12-17 Series
iPhone 12-17 Series
iPhone/Android Devices
Dimensions
3.2*1.5*1.1in
4.2*2.8*0.5in
3.9*2.6*0.4in
3.3*2.0*1.0in
Weight
4.1oz
6.7oz
3.8oz
5.6oz
From INIU — the SAFE Fast Charge Pro: Experience the safest charging with over 38 million global users. At INIU, we use only the highest-grade materials, so we do have the confidence to provide an industry-leading 3 years INIU care.
Keychain-Ready Portability: Compact enough to fit in your palm (3.2 x 1.5 x 1.1 inches) and weighing just 4.1 ounces, the INIU 5000mAh power bank easily clips to your bag or backpack with the built-in keychain. Ideal for seamless charging during commutes or trips.
Market’s Fastest Charging for iwatch: Offering up to 5W fast wireless charging, this portable iwatch charger fully powers your iwatch S10 in just 1.1 hours—4X faster than other 2.5W chargers. Never wait long to get back to tracking your day.
Compact Backup Power: This TSA-compliant 5000mAh power bank delivers up to 6 full charges for your iwatch S10 or can charge your iPhone 16 up to 91%, providing reliable power when you need it most.
Multi-Device Charging: Equipped with a built-in USB-C cable and an additional USB-C port, this portable power bank powers your iPhone, iwatch, and AirPods simultaneously—without the hassle of carrying multiple chargers.
What You Get: INIU 5,000mAh power bank for iwatch*1, user manual*1, and INIU industry-leading 3-year care and lifetime technical support.
Customers say
Customers find the power bank convenient for travel and appreciate its compact size, with one mentioning it fits perfectly in pockets or keychains. The device receives positive feedback for its quality and cable compatibility, with one customer noting the integrated USB C cable feature. However, customers disagree on the functionality, with some reporting it only lasts for a few minutes, and the charge rate is also mixed, with several customers noting it doesn’t fully charge iPhones. Value for money opinions are divided between those who consider it a great value and those who find it not worth the price.
13 reviews for INIU Portable Charger, Pocket Size 5000mAh 20W PD Fast Charging Power Bank, with Built-in USB C Cable and Watch Charger, Keychain Battery Pack, Travel Charger for iPhone 17 16 15, Apple Watch, etc.
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Original price was: $35.70.$22.49Current price is: $22.49.
Bob –
Small Compact and Fast
Purchased another 4000ma charger that turned out to be very slow in charging either an Ultra 2 watch or iPhone. This one was much faster with a high quality look and feel and had more power (5000ma) in a smaller and more compact case (see photo).In 29min it charged the iPhone 16 Pro in the photo from 56% to 79% while taking the charger battery from 100% down to 70% suggesting that it could fully charge the phone from a 25% starting point.For the Ultra 2 watch, in 30 min it charged from 55% to 86% while draining the charger battery from 70% down to 60% suggesting that it could fully charge the Ultra 2 from 25% more than four times.The integrated USB C cable is a great add taking almost zero additional space. The cable is two-way allowing both charging and discharging from the power pack.I have now switched out my Anker lipstick shaped charger for this one for my travel pack and I no longer need to pack separate phone or watch charging cables.
Greg Nicholson –
Mini portable power bank. Great for its size.
Great product.Compact and lightweight.Come with cord so you dont have to carry extra cord with you.
Xevious –
Small but mighty!
Great little gadget! If your someone who regularly carries a pistol in your pocket this device not only works as a fast portable charger it makes it easier to retrieve your keys ABD the gun in a pinch!I tested a full charge on a totally dead phone and it still had 5%GREAT STOCKING STUFFER!
Mervin K. Johnson II –
Still testing but so far so good!
Only had a week but so far so good! It charges itself a little slower than I expected however it doesn’t get as warm as I thought it would.
James Hanerfeld –
Device works great
Excellent device works great. Would recommend.
Emily –
Decent, but finicky to use as a plugged in apple watch charger
Pros-Feels high quality-Fairly light weight- built in cable and pass thru charger is really convenient- seems to charge apple watch quickly.Cons-Very bright LED display. Too much for a dark room, though good for sunlight.- I think a slimmer but wider/longer power bank would have been better and less noticeable in pockets.- The apple watch charger has to be turned on manually after plugging it in , and it shuts off when power cycling. A lot of larger chargers cycle when plugging in, so this can be very annoying. This does mean it saves energy though if you don’t always need to charge an apple watch.- Mine broke a few days into an international trip, so I had to go my trip without my watch. Support was nice/prompt, but deciding to return due to the cons.
Jg –
Get it
Itâs actually portable and not some massive thing hanging off keychain. Worth the price.
Lisa –
Buyer beware
If I could I would give 0 stars. At 100% the product only lasts for a few minutes when charging phone and it doesnât even charge phone completely.Not worth it.
Cris –
El producto es exactamente igual que el de la imagen. Funciona muy bien para cargar tanto el Apple Watch (yo tengo el series 10) como cualquier otro dispositivo de usc. Da para cargar varias veces aunque con el Apple Watch tarda un poco en cargar al 100%. Lo recomiendo.
Nat Love THG –
âHe recibido este producto de forma gratuita gracias al programa Amazon VineâLa Power Bank para Apple Watch de la marca INIU es pequeña y portátil de 5000 mAh. Se entrega en un paquete pequeño.â Lo Bueno â â Hay 2 opciones de carga USB-C (cargar el Apple Watch y 2 dispositivos USB-C a la vez), una mediante un cable USB-C integrado y otro mediante un puerto USB-C y, de forma inductiva, el Apple Watch. La carga funciona de forma fiable y sin problemas.â El cable integrado con conector USB-C da una impresión de alta calidad, se adapta perfectamente al soporte lateral y tiene la longitud justa.â BaterÃa externa INUI de muy alta calidad con lados redondeados, el procesado (cable integrado) también es de muy buena calidad. Nada se tambalea ni nada parecido. La baterÃa externa tiene un tacto estupendo y un bonito diseño.â La pantalla integrada muestra claramente la capacidad actual de la baterÃa en cifras.â El banco de energÃa tiene el tamaño perfecto para que puedas llevarlo a cualquier parte. El anillo de montaje es realmente ventajoso, ya que la baterÃa externa se puede sujetar de forma segura (a una mochila, bolso, llavero, etc.) para que siempre esté en su lugar.âEspero que mi reseña te haya ayudado ha resolver tus dudas sobre este productoâ
bichdiva –
The INIU 3-in-1 Portable Charger, Small 5000mAh Wireless Power Bank with Built-in Cable, Travel Keychain Battery Pack with LCD Display for iWatch 10/9/8/Ultra2/Ultra/SE, iPhone 16/15 etc, Green, comes well packaged as seen above.This compact and well-crafted power bank offers a range of convenient on-the-go charging solutions.Its compact design is its most advantageous feature, enabling easy storage in purses, knapsacks, or other devices.Although marketed as a keychain charger, the device does possess some weight and a suspended ring from a thin rubber loop. Consequently, it is advisable to exercise caution when using it, as there is a risk of detachment.Performance-wise, the device operates exceptionally well. Prior to use, it requires charging via a built-in USB-C cable. This cable can be conveniently attached to laptops or power adapters to charge the device. The lower display on the device indicates its current battery level during charging.Once fully charged, the device can be used with confidence, capable of charging iPhones, Apple Watches, and AirPods simultaneously. However, due to the limited built-in USB-C cable, charging multiple devices simultaneously necessitates an additional cable.Incorporating a built-in Apple Watch port on the deviceâs top enhances its versatility.In summary, this user-friendly power bank strikes a balance between convenience, compact size, and acceptable weight, making it an invaluable asset for everyday charging needs.Recommended
Ann Bryant –
Works well. I tried it a few times for my watch and I think that I can get at least 5 charges for my watch. Does the trick for my I phone. Itâll be great for travel. It is very light and compact. I wish the purple was actually purple and not just a very pale lilac. I also bought the black one for my husband.
SP –
Endlich eine Powerbank für Handy UND Uhr! Habe lange danach gesucht. Benutze sie jetzt seit 2 Wochen und sie tut, was sie soll!