Heltec v4

The Heltec WiFi LoRa 32 V4 represents the latest evolution of the popular Heltec LoRa series. Building upon the success of the V3, this version adds improved 28dBm output power and enhanced power management, making it one of the best value options for mesh networking in 2024.

• 28dBm Output Power: Increased transmission power for extended range
• Dual-core ESP32-S3: Powerful processor for running MeshCore or Meshtastic firmware
• SX1262 LoRa chip: Long-range, low-power radio communication
• 0.96” OLED Display: Shows basic message and status information
• Improved Battery Management: Better efficiency and longer runtime
• WiFi & Bluetooth: Connect to smartphones or configure via web interface

Compared to the V3, the V4 offers:

• Higher output power (28dBm vs. standard power)
• Better power efficiency: Longer battery life
• Enhanced thermal management: Runs cooler under load
• Improved antenna connector: More reliable connection

Perfect for:

• Upgrading from V3 for better range
• First-time mesh network users wanting the latest version
• Companion radio with smartphone app
• Deployments requiring maximum range on a budget
• Experimental projects and learning

• Requires external antenna (915MHz for US)
• Flash with MeshCore or Meshtastic firmware
• Connect via Bluetooth to smartphone app
• Optional: Add GPS module via expansion pins
• Can be powered by USB-C or LiPo battery
• Higher output power provides better range with quality antennas

• Official Documentation
• Meshtastic Hardware Guide
• Compatible with MeshCore Flasher