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Product Information

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Simple3 S /M/L

Simple3 M/L

Simple3 S

Contract category

1Switching carriers
2New contract
3Switching models
4 Switching from SoftBank / LINEMO

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Get great deals with trade-ins

When you trade it inUp to yenequivalentYou can get PayPay points^.

Check the trade-in value

*You must purchase a designated model from Y!mobile and have your trade-in device collected and appraised.
* Depending on the condition of the trade-in device (whether it is damaged, etc.), if we determine that it meets the criteria for a reduction in the value, the amount of the benefit granted to the customer will be reduced.
※ From then onThis is the bonus amount you receive when you trade in your old item.
* PayPay points cannot be transferred or withdrawn.

Online store: Out of stock

The price of the device varies from store to store.

Key Features

Screen size
Approximately 6.1 inches

Camera pixel count
Approximately 50 million pixels

バッテリー容量
4,160mAh

下り最大通信速度
5G：1.7Gbps^※1
4G：500Mbps^※2

Android™ 14

fingerprint
Face Recognition

Waterproof and dustproof

Wallet

*All specifications are based on information at the time of release.
*1 Currently available in some areas of Hokkaido, Tohoku, Tokyo, Nagoya, and Hokuriku.
*2 Available in some areas of major cities across the country.

Easy to use with an easy-to-understand screen

Simple and easy to understand screen

The large screen makes it easy to see text and photos, and it's easy to operate.

1. "Just press to get support"

Simply select the symptoms you are having and your smartphone problems will be automatically resolved.
If you are unable to resolve your issue or have any other concerns, please contact us by phone.

②Three easy-to-use buttons

One-touch phone and email operations. Equipped with three buttons that can be used just like a cell phone.

Large, easy-to-use text input screen

Daily health management made easy with your smartphone

You can always talk about your health concerns

You can use the service with peace of mind, as you will receive a response from a dedicated doctor or nurse within 30 seconds of starting your consultation.

*1Only available to Y Y!mobile line subscribers.
*2 There is no additional cost for using the health consultation service. Packet communication charges will be incurred according to the amount of data used.
* "Kantan HELPO" is a registered trademark and service of Healthcare Technologies, Inc.
*The screens and illustrations are for illustrative purposes only and may differ from the actual product.

Learn more

Make your outing more fun with a wide range of functions

A fun and sustainable walking habit

You can talk to "Ugokuma" and have fun while aiming to make walking a habit.

It gives you tips for a healthy lifestyle through simple checks.

You can record your daily steps and compare the calories burned and distance traveled.

Make your photos more fun

With a high-resolution camera, you can record your daily life in vivid detail.

Large capacity for ample storage

With 128GB of storage space, you can store plenty of photos and videos.

Reliable battery life

Equipped with a large-capacity 4,160mAh battery, you can enjoy it on the go without worrying about charging.

Full support with safety and security features

Measures against nuisance calls

Calls from suspicious numbers are notified on the screen. Even if you answer the phone, the call is recorded and an automated voice message warns the caller.

Connect with your family with "Good Morning Mail"

When you use your smartphone at the beginning of the day, an email will be automatically sent to your registered contacts. This is also useful for family members who live far away.

Calls are easy to hear

The design makes it easy to hear the other person's voice even in noisy places and is less likely to interfere with hearing aids.

* Seniors tend to have poor hearing for the high-frequency parts of speech, so our unique technology is used to process the high-frequency parts of received calls, making them easier to hear.
It complies with American hearing aid compatibility standards (Hearing Aid Compatibility), making it less likely to interfere with hearing aids.

Convenient functions and reliable durability

Face recognition and fingerprint recognition

In addition to facial recognition, fingerprint recognition is now also supported. You can unlock the phone just by looking at the screen or touching it with your finger, which is also useful for preventing identity theft.

Compatible with My Number Card and Osaifu-Keitai

It can be conveniently used for My Number health insurance cards, government services, train and bus payments, and shopping payments.

Waterproof, dustproof and shockproof

It can be washed thoroughly with foaming hand soap to keep it clean. Even if it is dropped, it is unlikely to break, so you can use it for a long time with peace of mind.

*Please refer to the specifications for details on waterproof, dustproof and shockproof properties.
*Product photos and screen images are for illustrative purposes only.

Related Information

to check area Manufacturer website

*The company names, system names, and product names listed on this page are generally registered trademarks or trademarks of the respective companies.
* Specifications and appearance are subject to change.

Main Specifications

Compare specs

Basic specifications

size Width x height x thickness of main body excluding protrusions	約W72×H165×D9.1mm
Weight Weight with battery pack installed	約177g
Continuous talk time ^*1 Talk time when signal reception is normal	[FDD-LTE] 約2,379分
Continuous standby time ^*1 Standby time when signal reception is normal	[FDD-LTE] 約538時間 [AXGP] 約510時間
Battery capacity Battery capacity, which is an indication of continuous usable time, etc.	4,160mAh
Charging time Approximate time required to fully charge the battery from a completely empty state	約95分（USB Type-C PD-PPS対応 ACアダプタ） *Measurements were taken using an AC adapter specified by SoftBank and are only a guide.
Platform OS and version installed	Android™ 14
CPU Data processing speed and number of processor cores	Qualcomm®SM4450(Octa-core) 2.2GHz+2.0GHz
ROM/RAM capacity The capacity of the built-in memory installed in the device	128GB / 4GB
Supported external memory / Maximum supported capacity ^*2 Types and capacities of memory cards that can store images, videos, music files, etc.	microSDXC™ / Maximum 1TB
SIM NanoSIM: A card-type SIM that is inserted into a smartphone eSIM: A digital SIM integrated into a smartphone	nanoSIM / eSIM

communication

Data communication method Supported communication standards or methods	5G / FDD-LTE / AXGP
Maximum communication speed ^{3 4} Maximum data communication speed in "4G/5G" areas	[5G] Downlink up to 1.7Gbps / Uplink up to 136Mbps ^1 [4G] Download speed up to 500Mbps / Upload speed up to 43Mbps ^2
Supported frequencies Supported Frequency Bands	Please see the PDF for details (52KB)
VoLTE (HD+) / VoLTE High quality voice communication possible	- / ●
Massive MIMO support	●

display

size The diagonal length of the display screen	Approximately 6.1 inches
Display method Display method	TFT
resolution Display screen detail	1,560 x 720 (HD+)

camera

Effective pixels Number of pixels used when shooting	［メイン］約5,000万画素［サブ］約800万画素
Recorded pixels (still images) Maximum size of still image that can be captured	8,160 x 6,144 pixels
Recorded pixels (video) Maximum video size that can be recorded	1,920 x 1,080 pixels (Full HD)
Photo Light Auxiliary light function for shooting in dimly lit places	●
Autofocus Auto-detect focus function	●
Image stabilization (still images/videos) Reduces the effects of camera shake that can easily occur when shooting	● / ●

Teza

Wi-Fi tethering function (maximum number of connections) Use your smartphone or tablet as a Wi-Fi router (maximum number of devices that can be connected simultaneously)	● (10 units)

Email

Y!mobile email (@yahoo.ne.jp) Unlimited carrier email available on multiple devices	●
MMS ^*5 It is possible to decorate text and send and receive multimedia such as audio and video.	● (@ymobile.ne.jp)
SMS (Short Message Service) Compact emails of up to 70 full-width characters can be sent and received to smartphones and mobile phones of other companies.	●

Useful features

Mobile Wallet® Smartphones can be used as electronic money	●
NFC You can use linked services just by holding your smartphone over compatible devices such as home appliances.	●
Waterproof/dustproof Compatible waterproof and dustproof standards	IPX5, IPX8 / IP6X ^*6
tv set Ability to watch terrestrial digital broadcasts on mobile devices	－
Wireless LAN Wireless communication IEEE802.11 compatible standard	a/b/g/n/ac
Bluetooth® It can be connected wirelessly to compatible devices such as wireless headphones and computers.	● (Ver.5.0)
Infrared communication Compatible devices can wirelessly exchange data such as phone numbers	－
GPS Use the navigation system to check your current location	●
Emergency Alert Email Earthquake and tsunami alerts can be received free of charge	●
International Roaming You can use your smartphone overseas as is.	－
Biometric authentication You can unlock the screen using a fingerprint or face sensor.	Fingerprints, Faces

Others

Accessories ^※7 Items included with the purchase (excluding instruction manual and warranty documents)	Easy Guidebook

Release date and manufacturer

release date	Release date: March 6, 2025
Manufacturer	ZTE Corporation
Product Number	A402ZT

*All specifications are based on information at the time of release.
*1 From April 9, 2026, the maximum communication speed was reduced from 159Mbps to 136Mbps.
*2 From April 9, 2026, the maximum communication speed was reduced from 46Mbps to 43Mbps.
*1 Varies depending on radio wave conditions and usage environment.
*2 We do not guarantee that all commercially available memory cards will work.
*3 The communication speeds listed are the maximum values based on technical standards and are based on a best-effort approach, and are not guaranteed as effective speeds. Communication speeds may vary depending on the communication environment and congestion. In addition, maximum communication speeds vary depending on the area you use. Please check here for details on areas.
*4 Supports UDC (Uplink Data Compression). By improving the efficiency of upstream data transmission, data transmission speeds faster than the listed speed may be possible depending on your environment.
*5When Changing devices, you may not be able to continue using the email address you used on your previous model.
*6 [IPX5] The phone will maintain its functionality even when it is sprayed directly from any direction with room temperature tap water at a rate of 12.5 liters per minute from a distance of about 3 m using a nozzle with an inner diameter of 6.3 mm. [IPX8] The phone will not leak water and will maintain its functionality even when it is gently submerged in a tank of room temperature tap water and still water at a depth of 1 m and left on the bottom for about 30 minutes. [IP6X] This means that the phone will function and remain safe when it is placed in a device containing dust particles with a diameter of 75 µm or less for 8 hours and agitated, and then removed.
*7 For models that do not come with an AC adapter, a separate AC adapter (SB-AC22-TCPD) is available. For details, please check with Y!mobile shop or Y!mobile dealer.

About Specific Absorption Rate (SAR)

This product, Kantan SMARTPHONE4, complies with the technical standards set by the government regarding the human body's absorption of radio waves and international guidelines for radio wave protection.

operating instructions

Easy Guidebook
PDF版（約12.9MB）	download

operating instructions
HTML version	Learn more
PDF版（約20.2MB）	download

Update information

About Specific Absorption Rate (SAR)

This product is designed to comply with the government's technical standards ^*1 regarding human absorption of radio waves and the radio wave protection limits recommended by equivalent international guidelines. These international guidelines were established by the International Commission on Non-Ionizing Radiation Protection (ICNIRP), which is in collaboration with the World Health Organization (WHO), and the permissible limits include a substantial safety margin designed to assure the safety of all users, regardless of age or health condition.
National technical standards and international guidelines define the permissible value for radio wave protection as the Specific Absorption Rate (SAR), which represents the average amount of radio wave energy absorbed by the human body. The permissible SAR value for mobile phones is 2.0W/kg.
The maximum SAR value for this product, Kantan SMARTPHONE4 at the side of the head is 1.985 W/kg, and when worn on the body ^*2, the maximum SAR value is 1.99 W/kg ^*3. While there may be slight differences in SAR between individual products, all meet the allowable limits. Mobile phones are designed to transmit the minimum power required for communication with mobile phone base stations, so the SAR value is usually lower when actually making a call. Generally, the closer the distance to the base station, the lower the output of the mobile phone.

*1 Technical standards are stipulated in the Radio Law-related Ministerial Ordinance (Article 14-2 of the Radio Equipment Regulations).
*2 This product can be used in positions other than on the side of the head. By using accessories such as a carrying case to keep the device at least 1.5 cm away from the body and without any metal (parts) between the device and the body, this product complies with national technical standards and international guidelines for radio wave protection.
*3 This value is the value for simultaneous transmission.

The World Health Organization has stated that "Numerous studies have been conducted over the past 20 years to assess whether mobile phones pose a potential health risk. To date, no adverse health effects have been established as being caused by mobile phone use."

For more detailed information, please refer to the following website.

World Health Organization website

For more detailed information about SAR, please refer to the following website.

Ministry of Internal Affairs and Communications website

Association of Radio Industries and Businesses website