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

Simple3 S /M/L

Simple3 S

Simple3 M/L

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Key Features

Screen size
Approximately 6.7 inches

カメラ画素数
約5,000万画素＋約1,600万画素＋約500万画素

バッテリー容量
5,100mAh

下り最大通信速度
5G：1.8Gbps^※1
4G：525Mbps^※2

Android™ 15 ^*3

Biometric authentication
Fingerprint and 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.
※3 発売時の情報です。最新の情報はサポート情報をご覧ください。

Easy to see on a large screen

The large 6.7-inch screen offers high-quality Full HD+

The narrow borders and full-screen TFT LCD make text easy to read and video viewing a delight.

Resolution 2,400 x 1,080. Refresh rate up to 120Hz. Screen occupancy rate approximately 92%

*The video is for illustrative purposes only.

Equipped with convenient AI functions

nubia's AI features

Various AI functions that make your daily life more convenient

AI fraud prevention: Determines whether a call is fraudulent based on the content of the call and issues a warning

AI Call Assist: When you can't answer the phone, it will ask you for your needs via text message.

AI call translation: When the other party speaks a foreign language, two-way translation is performed and displayed as text.

AI simultaneous interpretation When speaking with people from overseas, two-way translation is performed and displayed as text

*As of December 2025, it will support more than 20 languages.
*Image is for illustrative purposes only.

Smart Start

Smart Start Button

Set up frequently used functions
One-push startup

For example, if you set it to PayPay, you can launch PayPay with just one push!

It can also be set as a security alarm. 1. The security alarm is activated by pressing and holding the button for 5 seconds. 2. After activation, press the button displayed on the screen to sound the alarm. 3. After 10 seconds of sounding, the location information will be sent to the pre-designated person and a call will be made.

*Product photos and screen images are for illustrative purposes only.

Recording possible with call apps

Secure call recording function

Call recording function to check missed calls
Compatible with not only phone apps but also calling apps

For business use! Compatible apps: LINE, Teams, Messenger, Zoom, Facebook

You can turn on/off the notification to the other party that recording has started. This is a great way to prevent nuisance calls!

Excellent waterproof, dustproof and durable performance

Equipped with the highest level of waterproof performance IPX9

Excellent waterproof and dustproof performance and highly durable design
Safe to carry all day

Waterproof/dustproof performance

IPX5, 8, 9 / IP6X ^*1 So, it can withstand rain, puddles, and brief submersion in the pool.
Maintains smartphone performance even in high-pressure water and high-temperature environments

Heavy duty design

Compliant with 18 items of the US Department of Defense MIL standard ^*2

18 items of the US Department of Defense MIL standard for procurement

*1 When the USIM card/SD card tray is tightly closed, the device has IPX5, IPX8, and IPX9 waterproof performance and IP6X dustproof performance. Operation under all conditions in the actual usage environment is not guaranteed. Also, there is no guarantee that the product will not be damaged or malfunction.
[IPX5] This means that the phone can still function even when exposed to a water jet from any direction, using a water nozzle with an inner diameter of 6.3 mm, spraying water at a rate of approximately 12.5 liters per minute from a distance of approximately 3 m for at least 3 minutes.
[IPX8] This means that the phone will continue to function as a phone even if it is gently submerged in a tank of still tap water at room temperature to a depth of 1.5m and left at the bottom for approximately 30 minutes without water getting into the phone.
[IPX9] This means that the phone can still function after being sprayed with 80°C water at high pressure from four angles (0°, 30°, 60°, 90°) for 30 seconds (2 minutes) at each direction.
[IP6X] This means that the phone has the ability to prevent dust from entering the interior after being placed in an apparatus filled with dust particles with a diameter of 75 μm or less for 8 hours and then removed.
*2 Regarding compliance with military standards, testing was conducted in the nubia lab environment in accordance with 18 items of the US Department of Defense procurement standard (MIL-STD-810H). However, this does not guarantee operation under all conditions in an actual usage environment, nor does it guarantee that the product will be free from damage or malfunction.
*Image is for illustrative purposes only.

Reliable battery

Large capacity 5,100mAh battery
Fast charging also supported ^*1

Long-lasting, maintaining over 92% of maximum capacity even after 3 years ^*2

Supports fast charging, 27W PD3.0 standard

*1 Fast charging is compatible with the PD3.0 standard and has a maximum input power of 27W. Customers are required to bring their own fast charging compatible charger.
*2 Based on data collected at nubia labs. Actual results may vary depending on customer usage and environment.
*Image is for illustrative purposes only.

Memory & Storage

High-spec memory

6GB of memory (RAM) for smooth operation.
It can be expanded by another 6GB ^*1. The storage capacity (ROM) is also a solid 128GB.

RAM 6GB + Expandable RAM up to 6GB, up to 12GB

ROM 128GB, supports microSD card up to 1TB

*1 If there is sufficient free storage space (ROM), part of it can be used as virtual memory to expand RAM capacity. However, since part of the ROM is used, access speed and response performance will differ from physical RAM.
*Image is for illustrative purposes only.

High-quality dual cameras

Enhanced camera functionality

Equipped with a high-resolution camera that clearly captures a variety of scenes

Main camera: approx. 50 million pixels In-camera: approx. 16 million pixels Ultra wide-angle + macro: approx. 5 million pixels

Ultra-wide-angle mode

Cannot be captured with a normal camera
You can capture vast landscapes

Macro photography

Even close-up shots are clear

Multi-camera video recording

Convenient "multi-camera function"

Simultaneous video recording with the rear and front cameras
Record yourself and your partner, the scenery and their reactions

Multi-camera video recording
You can easily keep memories of your trip!

Simultaneous video recording with the rear and front cameras

Small screen display & same screen display

Two screen layout options
Myself, my partner, and the scenery
Record your reactions all at once

Recommended for Vlogging, Live Shooting, Interview Videos, and Commentary Videos

*Image is for illustrative purposes only.

Easy design/color

Approximately 8.0mm thin, it's easy to hold and fits neatly in your pocket

A slim body with plenty of functionality
I still want more
Also equipped with a 3.5mm earphone jack

*Image is 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W77×H167×D8.0mm
Weight Weight with battery pack installed	約189g
Continuous talk time ^*1 Talk time when signal reception is normal	[FDD-LTE] 約2,760分
Continuous standby time ^*1 Standby time when signal reception is normal	[FDD-LTE] 約545時間 [AXGP] 約535時間
Battery capacity Battery capacity, which is an indication of continuous usable time, etc.	5,100mAh
Charging time Approximate time required to fully charge the battery from a completely empty state	約63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.
プラットフォーム^※7 OS and version installed	Android™ 15
CPU Data processing speed and number of processor cores	UNISOC T8100 (Octa-core) 2.2GHz + 2.0GHz
ROM/RAM capacity The capacity of the built-in memory installed in the device	128GB / 6GB
Supported external memory / Maximum supported capacity ^*2 Types and capacities of memory cards that can store images, videos, music files, etc.	microSDXC™/Up to 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 / LTE / AXGP
Maximum communication speed (for 5G) ^*3 Maximum data communication speed in "4G/5G" areas	下り最大1.8Gbps^＊1 / 上り最大159Mbps^＊1
Maximum communication speed (4G) ^*3 Maximum data communication speed in "4G/5G" areas	下り最大525Mbps^＊2 / 上り最大46Mbps
Supported frequencies Supported Frequency Bands	機種の対応周波数はPDFをご覧ください（43KB）
VoLTE (HD+) / VoLTE High quality voice communication possible	ー / ●
Massive MIMO support	●

display

size The diagonal length of the display screen	Approximately 6.7 inches
Display method Display method	TFT
resolution Display screen detail	2,400 x 1,080 (Full HD+)

camera

Effective pixels Number of pixels used when shooting	[Main] Approx. 50 million pixels + approx. 5 million pixels [Sub] Approx. 16 million pixels
Recorded pixels (still images) Maximum size of still image that can be captured	50M（8160X6144）
Recorded pixels (video) Maximum video size that can be recorded	Full HD（1920x1080）
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 ^*4 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,IPX9 / 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 ^*5 Items included with the purchase (excluding instruction manual and warranty documents)	SIM removal tool (sample)

Release date and manufacturer

release date	Release date: December 4, 2025
Manufacturer	ZTE Corporation
Product Number	A504ZT

*All specifications are based on information at the time of release.
*1 Available in some areas of Tokyo, Nagoya and Osaka. For details on areas with maximum download speeds of 1.8 Gbps, please click here. For details on areas with maximum upload speeds of 159 Mbps, please click here.
*2 Currently available in some areas of major cities across Japan. For details on areas with download speeds of up to 525Mbps, please click here.
*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 on a best-effort basis, and are not guaranteed as effective speeds. Communication speeds may vary depending on the communication environment and congestion. Maximum communication speeds also vary depending on the area of use. With 5G services, actual communication speeds are expected to decrease compared to when the service was first launched due to an increase in users in the future.
*4 When Changing devices, you may not be able to continue using the email address you used on your previous model.
*5 For models that do not come with an AC adapter, an AC adapter is available separately. For details, please check with Y!mobile shop or Y!mobile dealer.
*6 [IPX5]: The phone will maintain its performance even when exposed to a direct jet of room-temperature tap water from a nozzle with an inner diameter of 6.3 mm from a distance of approximately 3 m at a rate of approximately 12.5 liters per minute for more than 3 minutes.
[IPX8]: The phone will maintain its functionality even if it is gently submerged in a tank of still tap water at room temperature to a depth of 1.5m and left at the bottom for approximately 30 minutes.
IP6X: Refers to the degree of protection, and means that the phone has the ability to prevent dust from entering the phone after being placed in an apparatus filled with dust particles 75µm or less in diameter for 8 hours and then taken out.
[IPX9] This means that the device can still function as a communications device after being sprayed with 80°C hot water at high pressure from four angles (0°, 30°, 60°, 90°) for 30 seconds (2 minutes) at each direction.
※7 発売時の情報です。最新の情報はサポート情報をご覧ください。

About Specific Absorption Rate (SAR)

This product, the nubia S2, complies with the government's technical standards regarding the human body's absorption of radio waves and international guidelines for radio wave protection.

operating instructions

Quickstart
PDF版（約499KB）	download

Instruction manual (online manual)
PDF版（約19.1MB）	download

Specific Absorption Rate (SAR) for mobile phones

This model [nubia S2] mobile phone complies with the national technical standards and international guidelines regarding the human body absorption of radio waves.

This mobile phone is designed to comply with the government's technical standards (*1) regarding human absorption of radio waves, as well as the radio wave protection limits recommended by equivalent international guidelines. These international guidelines were set out 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 specify the permissible value for radio wave protection as the Specific Absorption Rate (SAR), which indicates the average amount of radio wave energy absorbed by the human body, and the permissible SAR value for mobile phones is 2.0 W/kg. The maximum SAR value for this mobile phone when tested on the side of the head is 1.992 W/kg (*2), and the maximum SAR value when worn on the body is 1.618 W/kg (*2). While SAR values may vary slightly between individual products, all of them meet the permissible values.
Mobile phones are designed to transmit at the minimum power required for communication with a mobile phone base station, so the SAR value is usually lower when you are actually making a call.
This mobile phone can be used in positions other than at the temple. Please use an accessory such as a carrying case to keep the phone at least 0.5 cm away from your body, with no metal parts between the phone and your body. This has confirmed that this mobile phone complies with national technical regulations and international guidelines for radio wave protection.
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 information about SAR, please refer to the following website:

Ministry of Internal Affairs and Communications website

Association of Radio Industries and Businesses website

Click here for a list of Specific Absorption Rates (SAR) for each SoftBank smartphone model

*1 Technical standards are stipulated in the Radio Law-related Ministerial Ordinance (Article 14-2 of the Radio Equipment Regulations).
*2 Includes wireless functions that can be used simultaneously with mobile phone services.