# INIU P81 5000mAh Portable Power Bank for Apple Watch

Portable: The INIU P81 is a compact 5000mAh power bank marketed for Apple Watch charging and phone top-ups. Its small capacity and stated emergency-backup role make it better suited to a short boost than a full phone recharge.

- [Original product page](https://bargainpostbox.co.uk/product/iniu-p81-5000mah-apple-watch-power-bank)
- [View offer](https://bargainpostbox.co.uk/visit/iniu-p81-5000mah-apple-watch-power-bank)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: INIU
- Model: P81
- Category: Electronics > Electronics Accessories > Power Banks
- Price: 24.64 GBP
- Previous price: 28.99 GBP
- Discount: 15%
- Price checked: 2026-11-14T19:30:26.215Z
- Rating: 4.5 / 5
- Reviews: 1903

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing describes the P81 as a small emergency power bank for phones, Apple Watch and USB-C earbud cases.
- INIU claims a 20W PD output and gives charging examples based on devices starting at 20% battery.
- The product description says non-USB-C earbud cases need a separate cable.

## Pros

- A 5000mAh capacity in a compact form is suited to carrying for occasional top-ups.
- The listing claims wireless charging and two ports, alongside fast charging.

## Cons

- INIU describes phone charging as an emergency boost rather than a full recharge.

## Specifications

### Identity
- Brand: INIU
- Model: P81
### Dimensions and installation
- Dimensions listed: 6.8 x 10.7 x 1.8 centimetres
- Weight listed: 115 Grams
### Power and charging
- Battery capacity: 5000 Milliamp Hours
- Battery cell type: Lithium Polymer
- Voltage: 12 Volts
- Number of ports: 2
- Cordless: Yes
- Special features: Fast Charging, Lightweight, Over Charging Protection, Pocket Size, Wireless Charging
### Design
- Colour: White

## Before you buy

- Listing details are inconsistent: the title says 20W, while the technical voltage field says 12 Volts, and the listed dimensions and weight differ from the feature copy's 8.1 x 3.8 x 2.8 cm and 116g. The headline's built-in cable claim is not confirmed by the technical details. Check the selected listing for the exact dimensions, weight and cable arrangement before buying.

## A good fit for

- Apple Watch owners wanting a small backup charger to carry alongside everyday essentials.
- Buyers seeking a limited phone top-up rather than a power bank for full phone recharges.
- People charging USB-C earbud cases who want one compact backup battery.

## Less suited to

- Anyone needing a high-capacity bank for repeated full phone recharges.
- Buyers who require confirmed dimensions, weight or built-in cable details before purchase.

## Customer feedback

Customer feedback highlights perceived fast charging, compactness and portability, with mentions of carrying it on a key ring or in a handbag. Some also appreciate a built-in USB-C cable and light weight. These points may matter for a pocketable backup, but the reported cable experience does not settle the listing's inconsistent cable information, and the stated 5000mAh capacity is aimed at top-ups rather than full phone charging.
- Positive themes: Customers praise charging speed, compact size and portability.
- Positive themes: Feedback mentions appreciating a built-in USB-C cable and lightweight design.

## Frequently asked questions

### Is the INIU P81 suitable for a full phone recharge?
The listing describes it as an emergency phone boost, not a full recharge. Its stated capacity is 5000mAh, and the usable charge depends on conversion losses and the connected device.
### Can it charge an Apple Watch wirelessly?
Wireless charging is listed as a feature, and the product copy describes Apple Watch charging. It says to lay the watch flat and press the button to activate charging.
### Does it include a cable for earbud cases?
The listing says non-USB-C earbud cases need your own cable. The built-in cable claim is not confirmed in the technical details, so check the selected listing if cable inclusion matters.

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## Images

![INIU P81 5000mAh Portable Power Bank for Apple Watch — 1](https://bargainpostbox.co.uk/i/bYUALR95GZNVk2eJ45ibM-WpuGe5LJkI4ZzjSUd_fU5cqLPd4dSxbKZXhp0WR-vlJVYExYJpsneQYRdFM2sc0oPcX7QKzpAsBZSfRDKX5HuaE01emMl81PaD.jpg)

![INIU P81 5000mAh Portable Power Bank for Apple Watch — 2](https://bargainpostbox.co.uk/i/jRvA-CBSDzPAfQjsq2vUwD4DTkqWEsPLac3J6XaRRn_o_RE_M18hUEadxdi0S9praUEJnN4WN4K1Nb5r--XzlZyLuXsOT2q77Ppu9ljBcJkNjPFFPXjdPTIX.jpg)

![INIU P81 5000mAh Portable Power Bank for Apple Watch — 3](https://bargainpostbox.co.uk/i/D3x2wLVElzwpgSZIbB3fGjSBHTCNg6xxGZ7Gxea2zz9k3kLgrXCvMir2faEEHvvF3OBl-AeSu4CRs103jtK3kD6QYT6g7ZV4IaGzi1gxHMDe6wQmt84XA3T8.jpg)

![INIU P81 5000mAh Portable Power Bank for Apple Watch — 4](https://bargainpostbox.co.uk/i/mXJ9AetAboNm_42uwcLdQdYWR58DKR13KYobfCol968ylflZGMksfY_aowsUyW8B7fHqAtnpHunWTKko38N2-5TTyWs4PBIi_kFkHn8LO2oU5EiNOAAhLWpi.jpg)

![INIU P81 5000mAh Portable Power Bank for Apple Watch — 5](https://bargainpostbox.co.uk/i/VBs07MNcJGjkZ5PYf8Z-6BW_yw_9m3xhxKAx_WgrZtacmYW0d1de83ONYaXakgWdeZLb9gV54-1uiFySQHjfIwfN1ppFiJpKSIjgAqnW7n777YBcaCfeNcKu.jpg)

![INIU P81 5000mAh Portable Power Bank for Apple Watch — 6](https://bargainpostbox.co.uk/i/M6J0WFuOEXEhOB3RwG4d08j0aLu-ITrbhDfs5p2Kfwl4CqIxL8QB6TkCPphpfDAgQuGh3MSUofSF8RNjL48HfMxGVyBzUxT80I5r3o19FV1E5jzdPz0U_14t.jpg)

![INIU P81 5000mAh Portable Power Bank for Apple Watch — 7](https://bargainpostbox.co.uk/i/gv0y36RbyAdX_AfDRx6SWQ3zP-c2Ls0IVbI4YKOCGspMu_Mi1YjeHvjH9T5IIXjCGZxrKR9btiSKE5OFiXFIEZyOi206witjeGhPivTGQR8FGxPtAS62v-mb.jpg)