Huawei Expands Offline Messaging to Mate 70 Air

Huawei Brings Off-Grid Communication to More Devices

Huawei is expanding its proprietary MeeTime offline communication feature to the Mate 70 Air, allowing users to send messages and make voice calls without any cellular or Wi-Fi connection. The feature, first introduced with the Mate 80 series in November 2024, uses 2.4GHz radio frequencies to enable direct device-to-device communication.

The update arrives as part of HarmonyOS 6.0.0.115, which users must install to activate the capability. Huawei has been gradually rolling out support to older devices since December 2024.

How the Off-Grid Feature Works

Huawei's MeeTime offline communication leverages 2.4GHz radio signals to connect nearby devices directly — bypassing traditional network infrastructure entirely. Under optimal conditions, the technology delivers impressive range:

• Maximum theoretical range: up to 7 km (based on extreme-condition testing)
• Real-world range in open, unobstructed environments (flat terrain): approximately 1 km
• Hybrid mode: works even when users have network access, detecting nearby offline contacts automatically
• Reply window: connected users can respond to offline users' messages within 24 hours

The feature is particularly useful in remote outdoor scenarios — hiking, camping, or emergency situations where cellular coverage is unavailable. It essentially turns compatible Huawei phones into walkie-talkie-style communicators.

Full List of Supported Devices

Huawei's off-grid communication now spans several product lines. The complete roster of compatible devices (running HarmonyOS 6.0.0.115 or later) includes:

• Mate 80 series: Mate 80, Mate 80 Pro, Mate 80 Pro Max, Mate 80 RS
• Mate X7 series (foldable lineup)
• nova 15 series
• Pura 80 series (added December 2024)
• nova 14 Pro / Ultra (added December 2024)
• Mate 70 Air (newly added)

The Mate 70 Air addition is notable because it extends this premium feature to a more accessible price tier, potentially broadening the user base significantly within Huawei's ecosystem.

Strategic Significance for Huawei

This rollout reflects Huawei's broader strategy of differentiating its devices through HarmonyOS-exclusive features that competitors on Android or iOS cannot easily replicate. Off-grid communication requires hardware-level support at the radio layer, making it difficult to copy through software alone.

Richard Yu (Yu Chengdong), Huawei's executive director and chairman of the Terminal Business Group, personally showcased the feature at the Mate 80 launch event. The company positions it as a safety-critical capability rather than a novelty — a meaningful selling point in China's vast rural and mountainous regions.

For global observers, the technology mirrors concepts seen in Apple's satellite SOS feature and Android's upcoming satellite messaging partnerships, though Huawei's approach works purely peer-to-peer without satellite infrastructure. As Huawei continues expanding device compatibility, the feature could become a standard expectation across its entire smartphone lineup by late 2025.