The Xshielder explosion proof smartphone cover for hazardous areas introduces a brand new concept for Zone 1 devices, namely a residual value of the Iphone within the cover/enclosure, which positively affects the Total Cost of Ownership (TCO) and therefore the buying decision.
A brand new feature for zone 1 explosion proof iphone covers
For the last decade, explosion proof smartphones for hazardous areas have typically been mid-range Android devices, based on long-lifetime industrial components, which we covered in this blog post named “why ex certified smartphones have been lagging behind”. These devices are purpose built, and parts or all of the device deploy a certification method called ex-m which means that the entire phone including the internal components and battery is filled with a resin to reduce the internal volume and to absorb heat. A Zone 1 android smartphone typically has a 2-4 years lifespan. And since newer and better android consumer devices are introduced every year, the residual value of these devices are virtually zero. You can even argue that the value is negative since the devices need to be disposed of and handled appropriately, which has a cost.
One of the innovations from the Xshielder team is the concept of replaceable cover design, meaning that the iPhone within the cover isn’t cemented (glued) which allows it to be replaced or extracted after the device has been decommissioned. This opens up for the device being wiped and resold, and the aluminum and glass from the cover to be recycled. This feature positively impacts both the Total Cost of Ownership and for the Co2 emission of the product itself.
This blog explores the main reasons — from software support and build quality, to battery management and enterprise compliance. We’ll also look at common enterprise concerns when reselling explosion proof devices, and share a data-driven table of resale values across the last five Iphone Pro Max generations.
Apple supports its devices with iOS updates for 5+ years. That means even a 4-year-old iPhone can run the latest OS and security patches, keeping it relevant and safe.
Keeping the iPhone inside Xshielder’s explosion proof aluminum and glass cover which is water proof and dust free makes the device inside appear as new when opened. This consistency boosts buyer confidence.
Apple’s ecosystem keeps users loyal. Many buyers specifically look for older iPhones to re-enter the Apple ecosystem at a lower cost.
Apple’s own trade-in program establishes clear resale benchmarks. Buyers trust that a used iPhone has a “floor value,” which stabilizes the market. Apple offers trade-in discounts and official values in the second hand market.
Battery health is one of the biggest buyer concerns in the secondhand market. iPhones enjoy an edge for several reasons:
From an enterprise resale perspective, data security is critical. The good news is that Apple’s factory reset is designed for compliance.
This makes iPhones one of the safest devices to resell from a compliance standpoint.
Concern |
How It’s Addressed |
Residual data recovery |
Erase All Content & Settings cryptographically wipes all user data. |
Licensing / enterprise apps |
MDM removal ensures apps/tokens are revoked. |
Warranty questions |
Buyers can check AppleCare status via serial number. |
Market confidence |
Devices in mint condition with visible battery health scores command premium resale. |
Network compatibility |
Ensure devices are unlocked and provide IMEI checks. |
By documenting each step — battery health, reset proof, condition reports — resellers can overcome nearly all enterprise buyer objections.
Here’s a snapshot of Apple’s Pro Max resale trajectory. Figures combine reported sales data with current trade-in averages from leading vendors in the second hand market (Sept 2024–Jan 2025).
Model |
Release Date |
Key New Features |
Current Resale Value* |
iPhone 12 Pro Max |
Nov 2020 |
5G, Ceramic Shield, LiDAR, MagSafe |
$269–$301 (storage dependent) |
iPhone 13 Pro Max |
Sept 2021 |
A15 chip, ProMotion 120Hz, improved cameras |
$340–$415 |
iPhone 14 Pro Max |
Sept 2022 |
Dynamic Island, Always-On Display, 48 MP camera |
$431–$511 |
iPhone 15 Pro Max |
Sept 2023 |
Titanium frame, Action Button, USB-C |
$571 avg (up to $790 in top condition) |
iPhone 16 Pro Max |
Sept 2024 |
A18 Pro chip, further camera upgrades |
$681 avg; top $1,095 |
The table above shows absolute resale value, regardless of the actual sales price of the iphone when it was purchased.
iPhones are the gold standard of value retention. And for Xshielder explosion proof iphone customers they can calculate with a resale value up to 50 % of the value of the Iphone itself, even after many years of use in hazardous areas.
Enterprise concerns can be addressed by following IT equipment decommissioning procedures
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