CIO Announces Up to 35% Off Charging Gadgets and More at Amazon Smile SALE Golden Week

CIO Offers Up to 35% Off Latest Charging Gadgets at Amazon Smile SALE Golden Week

CIO, a Japanese gadget manufacturer, has announced its participation in the “Amazon Smile SALE Golden Week,” which will take place on Amazon from Thursday, April 30, 2026, at 9:00 AM to Sunday, May 3, 2026, at 11:59 PM. During this period, a selection of CIO’s charging gadgets, optimized for the latest smartphones and PCs, will be available at discounts of up to 35%.

The sale includes popular items such as the compact and high-output “SMARTCOBY” series of mobile batteries, the small GaN rapid chargers from the “NovaPort” series, the “Silicone Cable” known for its pleasant texture, and the “Spiral Cable” that self-organizes with magnets. These diverse products will be offered at special prices.

Visit the CIO Amazon store page here: CIO Amazon Store

Featured Semi-Solid Mobile Batteries

SMARTCOBY Ex04 Wireless2.2 CABLE SS5K

This mobile battery features a slim design of approximately 14mm, supporting up to 25W wireless charging via Qi2.2 and up to 20W wired output. It incorporates semi-solid battery cells for enhanced safety. With a built-in 22cm detachable USB-C cable, it offers convenient charging on the go. Its 5000mAh capacity and smartphone-adhering size make it highly portable.

Sale Price: 6,480 JPY (incl. tax) – 9% OFF
Product Page: SMARTCOBY Ex04 Wireless2.2 CABLE SS5K

SMARTCOBY Pro SLIM SS

This 10,000mAh semi-solid mobile battery boasts a slim 16mm profile and supports up to 35W single-port output. It includes two USB-C ports and one USB-A port, allowing simultaneous charging of up to three devices, including smartphones, tablets, and laptops. It also supports pass-through charging and features a digital display for battery level and charging status.

Sale Price: 5,680 JPY (incl. tax) – 10% OFF
Product Page: SMARTCOBY Pro SLIM SS

SMARTCOBY TRIO 35W SS20000mAh

With a large 20,000mAh capacity, this semi-solid mobile battery offers up to 35W single-port output. Despite its high capacity, it maintains a portable size (approx. 91.5×68.8×29.5mm, 330g). It features two USB-C ports and one USB-A port for charging up to three devices simultaneously. The battery also supports up to 35W input for rapid recharging.

Sale Price: 8,280 JPY (incl. tax) – 11% OFF
Product Page: SMARTCOBY TRIO 35W SS20000mAh

SMARTCOBY TRIO 67W SS20000mAh

This 20,000mAh high-capacity semi-solid mobile battery delivers up to 67W single-port output. Equipped with two USB-C ports and one USB-A port, it can charge up to three devices simultaneously. CIO’s proprietary “NovaIntelligence” technology automatically distributes power based on the connected device, ensuring optimal charging. This model emphasizes safety with its semi-solid battery while offering high output and capacity.

Sale Price: 9,880 JPY (incl. tax) – 10% OFF
Product Page: SMARTCOBY TRIO 67W SS20000mAh

SMARTCOBY SLIMⅡ Wireless2.0 SS5K

Designed to reduce the risk of ignition compared to conventional lithium-ion polymer batteries, this next-generation mobile battery incorporates Tier1 semi-solid cells. It achieves a thin 8.7mm profile while maintaining high safety standards, utilizing CIO’s proprietary “NovaSafety S2” (heat suppression firmware) and “NovaCore C2” (internal structure design standards). It offers Qi2 standard 15W wireless charging and 5000mAh capacity in an aluminum alloy casing.

Sale Price: 6,180 JPY (incl. tax) – 12% OFF
Product Page: SMARTCOBY SLIMⅡ Wireless2.0 SS5K

Featured Mobile Batteries

SMARTCOBY SLIM II Wireless 2.2 8K

This 8,000mAh mobile battery is Qi2 certified, offering up to 25W wireless charging. It strikes a balance between capacity and portability, with a thickness of approximately 12mm and a weight of about 170g. It also supports up to 30W wired charging and features switchable “High Performance Mode” for faster charging and “Safety Mode” for reduced heat generation.

Sale Price: 6,580 JPY (incl. tax) – 18% OFF
Product Page: SMARTCOBY SLIM II Wireless 2.2 8K

SMARTCOBY ULTRA SLIM 3K

Recognized as one of the world’s thinnest magnetic mobile batteries, this model is only 4.98mm thick and weighs approximately 82g. It attaches seamlessly to an iPhone, offering MagSafe-compatible Qi wireless charging (up to 7.5W) and a 3000mAh capacity for a quick power boost. Additionally, it supports Apple’s “Find My” feature for anti-loss measures.

Sale Price: 8,280 JPY (incl. tax) – 8% OFF
Product Page: SMARTCOBY ULTRA SLIM 3K

Featured Chargers

NovaPort SOLO II 65W1C

This compact charger delivers up to 65W output, suitable for a wide range of devices from PCs to smartphones. Smaller than a single dry cell battery and weighing only about 74g, it is highly portable. CIO’s unique “NovaSafety2.0” function automatically adjusts heat generation, enabling its ultra-compact design. It also features a foldable plug for convenience.

Sale Price: 3,940 JPY (incl. tax) – 10% OFF
Product Page: NovaPort SOLO II 65W1C

NovaWave 3Way+

The “NovaWave 3Way” portable stand, which simultaneously charges an iPhone and Apple Watch wirelessly, has been renewed as “NovaWave 3Way+” with doubled output. It supports Qi2 for up to 15W for iPhone 12 and later (excluding SE series and 16e) and up to 5W for Apple Watch. It can charge two devices simultaneously with a single USB-C cable. Its thin and lightweight (approx. 69g) design ensures portability.

Sale Price: 4,480 JPY (incl. tax) – 10% OFF
Product Page: NovaWave 3Way+

NovaPort DUOⅡ 45W Built in CORDREEL

This charger features a built-in 65cm USB-C cable and provides up to 45W output. The USB-C connector pops out at the push of a button, eliminating concerns about forgetting cables and keeping desks tidy. It also includes an additional USB-C port, allowing rapid charging of two smartphones (20W+20W) or a tablet and a smartphone simultaneously (30W+15W).

Sale Price: 4,280 JPY (incl. tax) – 11% OFF
Product Page: NovaPort DUOⅡ 45W Built in CORDREEL

Featured Power Strips

Polaris CUBE Built in CABLE

This USB-port equipped power strip is conveniently sized like a coffee can for portability. With a swing plug and a built-in 55cm cable, it is designed for ease of use in various outlet environments, such as hotels and Shinkansen trains.

Sale Price: 6,080 JPY (incl. tax) – 21% OFF
Product Page: Polaris CUBE Built in CABLE

Featured Cables

Flex Spiral Cable CtoC 1m

This innovative cable features built-in magnets that allow it to extend when pulled and instantly coil back into a spiral shape when released. It eliminates the need for cable ties, making it easy to store neatly in bags or pouches. It supports up to 240W PD rapid charging for stable power supply to laptops and USB2.0 data transfer (up to 480Mbps). Available in black, white, and purple.

Sale Price: 1,780 JPY (incl. tax) – 10% OFF
Product Page: Flex Spiral Cable CtoC 1m

Flat Spiral Cable CtoC

A flat-type spiral cable that uses magnetic force to keep itself neatly organized. It extends with a pull and retracts with a snap. Available in 1m and 1.5m lengths.

Sale Price: 1,880 JPY to 2,060 JPY (incl. tax) – Up to 12% OFF
Product Page: Flat Spiral Cable CtoC

Other Featured Products

Hot Eye Mask

This hot eye mask offers a cordless experience thanks to an external ultra-compact battery. It features three adjustable temperature settings to suit individual preferences and utilizes a graphene heater for efficient heat conduction and light weight.

Sale Price: 4,580 JPY (incl. tax) – 16% OFF
Product Page: Hot Eye Mask

Portable Bath Speaker

An IPX7 waterproof portable speaker suitable for bath time, camping, and other activities. It has a built-in magnet, allowing it to be attached to magnetic surfaces like unit baths or refrigerators. Supporting wireless charging, it can be quickly wiped dry and recharged. Its palm-sized compact design ensures portability, offering 8 hours of continuous playback on a full charge. This single device transforms any location into a music spot.

Sale Price: 5,380 JPY (incl. tax) – 10% OFF
Product Page: Portable Bath Speaker

About CIO Co., Ltd.

Established in 2017, CIO Co., Ltd. operates under the philosophy of “creating an exciting future with multi-functional and cutting-edge technology.” The company focuses on developing and manufacturing its own smartphone-related products, such as chargers and mobile batteries, with a unique story and passion behind each item. CIO strives to deliver products that evoke the excitement of discovering the convenience of multi-functional and high-performance gadgets.