5 Best ATEX Zone 1 Smartphones in 2026, Compared
Quick summary
- Best overall: Xshielder Case + iPhone 17 Pro Max — the only Zone 1 solution running iOS 27
- Lightest & thinnest: Xshielder Case + iPhone 17 — 330 g / 16.1 mm, the slimmest Zone 1 smartphone solution
- Best Android: ecom Smart-Ex 03 DZ1 — 5G, Wi-Fi 6, Zone 1/Div 1
- Best for Zone 0 use: Bartec SP9EX1 — Ex ia IIC T4 Ga, the only Zone 0 rated 5G smartphone
- Best for enterprise fleets: Xshielder — iPhone 17 Pro Max with iOS 27, native Jamf/Intune MDM, zero separate provisioning
- Best global certification: i.safe MOBILE IS540.1 — 5G, 48 MP, certified across 9 schemes worldwide
What makes a smartphone "Zone 1 certified"?
Zone 1 is the second most hazardous explosive atmosphere classification. IEC 60079-10 defines it as an area where an explosive gas atmosphere is likely to occur in normal operation, occasionally. Think pump rooms on chemical tankers, gas processing areas in refineries, or classified zones in LNG terminals. See also: ATEX and IECEx explained and the guide to hazardous area classification.
A device certified for Zone 1 must meet a recognised protection concept under ATEX or IECEx. For portable electronics this usually means intrinsic safety (Ex ia or Ex ib): the device cannot release enough electrical or thermal energy to ignite a surrounding explosive atmosphere, even in fault conditions. Some Ex cases use a flameproof enclosure (Ex db) instead.
Not all "rugged" phones are Zone 1 certified. Military-spec ruggedness (MIL-STD-810) and IP68 water resistance have nothing to do with Zone 1 certification. A phone can be fully waterproof and survive a 1.5 m drop but still be prohibited in your gas processing area.
The 5 best Zone 1 smartphones in 2026
Xshielder Case + iPhone 17 Pro Max
The Xshielder case is the only ATEX Zone 1 / IECEx certified solution for the iPhone 17 Pro Max. As of 2026, Xshielder is the only vendor offering Zone 1 certification for the iPhone 17 Pro Max, and it also certifies an iPhone 17 version. Workers carry a genuine iPhone running iOS 27, with full access to the App Store, Face ID, Apple Pay, and enterprise MDM platforms like Jamf or Intune.
This is significant. Picks 2 to 4 run Android, often an older or locked-down version with vendor-controlled update cycles. The Xshielder approach means your field workers use exactly the same device as everyone else in the business, just inside a certified case in classified areas. iOS 27 delivers current security patches, Apple Intelligence features, and long-term support.
- Only Zone 1 certified solution for the iPhone 17 Pro Max, running iOS 27
- No separate device to manage: same apps, same MDM policy, same workflows
- Replaceable host device: swap the iPhone without re-certifying the case
- iOS security updates directly from Apple, not a third-party vendor
The economics are compelling. The Xshielder case is significantly less expensive than a purpose-built Zone 1 Android device, and the iPhone itself is a standard enterprise purchase your IT team already handles. Pricing is on request. Ask for a price.
ecom Smart-Ex 03 DZ1
ecom (a Pepperl+Fuchs brand) has been building hazardous area electronics since 1953. The Smart-Ex 03 DZ1 is their current flagship Zone 1 5G Android smartphone: 6-inch display, Wi-Fi 6, fingerprint sensor, and security patches guaranteed until October 2030.
The trade-offs are price and a vendor-controlled Android update cadence. For organisations that need a dedicated hazloc device managed separately from standard devices, ecom is the benchmark Android option with the widest global service network.
- 5G and Wi-Fi 6 for worldwide use
- Dual ATEX + IECEx certification (gas + dust)
- German Design Award 2024
- Security patches until October 2030
Bartec SP9EX1
Bartec's latest smartphone and the only 5G device with Ex ia Zone 0 certification. 6.1" AMOLED, 48 MP camera, Android 15, Wi-Fi 6. ATEX, IECEx and NEC Div 1. Replaces the older Agile X and Pixavi lines. The most compact 5G Zone 0/1 device currently available.
i.safe MOBILE IS540.1
5G Zone 1 Android smartphone with a 48 MP camera, 6-inch FHD display and dedicated PTT key. Certified across 9 schemes globally (ATEX, IECEx, NEC, KCs, INMETRO, PCEC, TIIS, IA, PESO). Dual-SIM with eSIM support. German-engineered, common in European chemical and offshore deployments.
Xciel Ex Case for iPhone
iOS-native certified Ex case with wide iPhone model support (iPhone 7 through 17). Zone 1 / Zone 2 / Class 1 Div 2. A solid fit for oil and gas operators already standardised on iPhone fleets. US-based manufacturer (Xciel Inc). Note: Xciel does not offer Zone 1 certification for the iPhone 17 Pro Max. For that model, see the Xshielder case above.
How we chose these picks
We evaluated devices on six criteria: zone classification (must be Zone 1), certification scope (ATEX, IECEx, or both), OS currency (Android version or iOS), total cost of ownership (device, support, replacement), ecosystem fit (how well it integrates with enterprise IT), and real-world adoption in relevant industries.
We don't accept payment for placement. The #1 pick is the #1 pick because it offers the best combination of certification, usability, and economics for most buyers, not because Xshielder paid for it.
Bottom line
For most organisations, the Xshielder case + iPhone 17 Pro Max is the strongest choice in 2026. It is the only Zone 1 solution running iOS 27, giving you current Apple security, Apple Intelligence, and native enterprise management through Jamf or Intune. The total cost of ownership is significantly lower than any dedicated Android alternative, and field workers get a device they already know how to use.
If your operation specifically requires a dedicated hazloc Android device, perhaps because your app stack is Android-only, the ecom Smart-Ex 03 DZ1 remains the benchmark for build quality and global service coverage. For sites that require a Zone 0 rating, the Bartec SP9EX1 is currently the only 5G option.
Questions? Send us a note and we'll help you find the right device for your zone classification and site requirements.