Japan: rules and approvals
Radio equipment falls under the Telec technical conformity scheme of the communications ministry, and a certified-products database can be searched to check a model.
Japan · rugged
Rugged Smartphone Distributor in Japan
The IS-04Z1 is an intrinsically safe handset for people who cross into classified areas in Japan every shift: refinery and petrochemical-complex operators, LNG terminal crews, inspection engineers, and the HSE and telecoms teams who equip them. Small rivers, including the Edo River, supply water to the Keiyo industrial region, and the Port of Chiba serves the zone. Distribution partners for Japan are being identified ahead of the Q4 2026 launch of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicrugged
DeviceSmartphone
RouteDistribution
WhereJapan
Short answer. Japan has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · rugged
Checklist: rugged smartphone for Japan
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ingress protection | IP65 to IP68 sealing | IP68 design |
| Drop and shock | A stated drop height onto concrete | Specification on request |
| Explosion protection | A separate certificate and marking | In progress; not issued |
| Where it applies | Japan: Sakai, Kashima, Mizushima | Classified by the site operator |
Product · Japan
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Japan. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The market · Japan
Where an Ex phone is used in Japan
Operators and classified areas drawn from the SAMS Japan market guide.
Operators, EPCs and contractors
- ENEOS
- Japan’s largest oil refiner and petroleum products company
- Idemitsu Kosan
- Major refiner and petrochemical producer
- Cosmo Oil
- Refining and petrochemical operations nationwide
- JAPEX
- Japan Petroleum Exploration — domestic upstream production
- Mitsubishi Chemical
- Major petrochemical producer with complexes including Kashima
- JERA
- Japan’s largest power generator, with major LNG and thermal assets
Industrial areas and sites
- Kashima
- Large integrated petrochemical complex in Ibaraki
- Mizushima
- Major refining and petrochemical complex in Okayama
- Chiba / Sodegaura
- Petrochemical and refining complex on Tokyo Bay
- Yokkaichi
- One of Japan’s oldest and largest petrochemical complexes, Mie prefecture
- Sakai
- Refining and petrochemical operations near Osaka
Field notes · Japan
More about Japan that matters for portable equipment
Japan: rules and approvals
Explosion-protected electrical equipment must pass type examination, called kentei, under Article 44-2 of the Industrial Safety and Health Act, and equipment without the pass mark may not be used.
Japan: rules and approvals
The type examination involves a sample for structural inspection, with no factory audit in law, and the applicant can be a Japanese or foreign manufacturer or an importer.
Japan: geography and layout
The Keiyo Industrial Zone runs along the north-eastern coast of Tokyo Bay through eight cities in Chiba Prefecture, from Urayasu to Futtsu, including Chiba, Kisarazu and Ichihara.
The term · rugged
What “rugged” means for a smartphone
A rugged phone is built to survive water, dust, drops and rough handling, usually rated by an IP code and a drop specification. Ruggedness is an environmental property: it says nothing about whether a phone may be used where flammable gas or dust is present. That is decided by explosion-protection certification and marking.
The IS-04Z1 combines both: an IP68 sealed rugged build and a design for Zone 1 and Zone 21 (marking target Ex ib IIC T4). The explosion-protection certificates are in progress and none has been issued.
In Japan. Japanese coastal complexes face humid summers, typhoon-season storms and salt-laden air. IP68 sealing helps with water, dust and salt-spray ingress. It is not explosion protection, which must come from certification and the Ex marking. Battery behaviour in summer humidity and heat should be tested on a trial unit.
The route · distribution
Distributing the IS-04Z1 in Japan
Distribution of the IS-04Z1 is by authorised partners only, and SAMS has not yet granted a territory for Japan. Each application is reviewed on its merits. Because opening a certified Ex handset in an ordinary workshop invalidates its certificate, the partner must be able to support and service the device locally.
What SAMS looks for in a partner
- Operator relationships
- Existing supplier registrations or a clear route to them with the main operators and contractors in Japan.
- Ex-competent staff
- People who understand zone classification, markings and the conditions of a certificate.
And equally important
- Local-language support
- Documentation, training and helpdesk in the languages the workforce uses.
- Service capability
- Spares, battery replacement and repair routed through SAMS-approved channels.
Questions · Japan
Frequently asked questions
Can we buy a rugged smartphone in Japan today?
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
What does a rugged smartphone in Japan cost?
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
How rugged is the IS-04Z1?
It is designed to IP68 sealing, with glove-friendly controls. Ruggedness is not explosion protection: that depends on the certificates, which are in progress.
Which sites in Japan does this cover?
The market guide for Japan covers Kashima, Mizushima, Chiba / Sodegaura, Yokkaichi, among others. Site-level pages are linked below.
How do I become a SAMS distributor for Japan?
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for Japan.
What radio approval does a phone need in Japan?
Radio equipment is covered by the Telec technical conformity scheme, and the certified-products database can be searched to check a model. Requirements depend on the radio technologies in the device, so confirm with a registered certification body before importing.
Can an IECEx report speed up approval in Japan?
Since 2017 an IECEx test report can be submitted as the applicant's prior test results, which can reduce testing, but the Japanese type examination certificate is still required, and it is valid for three years. Confirm the reports accepted with the chosen examination body.
Will a handset cope with typhoon-season humidity and salt air?
The IS-04Z1 has IP68 sealing, which helps with water, dust and salt-laden air. That is an ingress rating only. Ask for the datasheet's operating ranges and test a unit during a humid season round at a coastal site.
Related guides
Keep exploring
More on Japan, and on other places in Japan.
ATEX and IECEx Mobile Phone Supplier in JapanSame place, different guide
Explosion-Proof Mobile Phone in JapanSame place, different guide
Hazardous Area Mobile Phone Distributor in JapanSame place, different guide
Ex-Proof Mobile Phone in JapanSame place, different guide
Intrinsically Safe Mobile Phone Supplier in JapanSame place, different guide
IECEx Mobile Phone in JapanSame place, different guide
Japan market guideCertification route and regulators
All guides for JapanEvery route we cover
Certification statusWhat is in progress
Enquiry · Japan
Ask about the IS-04Z1 for Japan
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Japan
Launching Q4 2026
Planning for Japan?
Name the site and the operator and we will send what is available before launch.