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Heltec WiFi LoRa 32 V4 Fully Assembled Mesh Node
Ready-to-Use Heltec V4 Meshtastic Device
The Heltec WiFi LoRa 32 V4 is a compact, powerful LoRa mesh device built around the ESP32-S3 dual-core chipset paired with the SX1262 LoRa transceiver. Designed for Meshtastic, LoRaWAN, Bluetooth 5.0, BLE Mesh, and Wi-Fi communication, this Heltec V4 build is portable, rugged, and ready to go straight out of the box.
Paired with the Alley Cat + MakerNova protective case system, the Heltec V4 becomes a reliable, field-ready communicator capable of 3 to 4 days of runtime per charge, depending on usage and radio duty cycle.
Highlights
- Fully assembled, minimal setup required
- ESP32-S3 MCU + SX1262 LoRa radio
- Wi-Fi 802.11 b/g/n + Bluetooth 5.0 LE / BLE Mesh
- Optional L76K GPS support on Pro variants
- USB-C power, Li-ion battery, and solar charge compatibility
- Swappable antennas and case fronts
- Pocket-sized, rugged, and portable
- Field-tested with MakerNova batteries
What's In The Box
- Heltec WiFi LoRa 32 V4 Board
- Antenna (Caterpillar or 17 cm Gizont, depending on model)
- Battery (2000 mAh or 4000 mAh, depending on variant)
- Custom MakerNova case front & back
- Black buttons
- MOLLE or Baofeng-compatible clip
- Lanyard (random color)
- Quick start / assembly card
▸ Technical Specifications
| Feature | Details |
|---|---|
| MCU | ESP32-S3R2 Dual-Core Xtensa LX7 (32-bit) |
| Memory | 2 MB PSRAM + 16 MB Flash |
| LoRa Radio | Semtech SX1262 |
| Frequency Range | 863–928 MHz (902–915 MHz typical for US) |
| Transmit Power | Up to 28 dBm (≈ 600 mW) |
| Receive Sensitivity | As low as −137 dBm @ SF12 |
| Wireless Connectivity | Wi-Fi 802.11 b/g/n + Bluetooth 5.0 LE + BLE Mesh |
| Power Inputs | USB-C, Li-ion battery, solar charge header (SH1.25-2P) |
| Board Dimensions | Approx. 51.7 × 25.4 × 10.7 mm |
| Typical Runtime | Approx. 3 to 4 days per charge (depends on settings and duty cycle) |
▸ Case Dimensions
- Pocket: 60 × 40 × 24 mm
- Pocket SMA: 60 × 40 × 24 mm
- Pocket Pro: 65 × 40 × 24 mm
- Pocket Pro SMA: 65 × 40 × 24 mm
- Slim: 70 × 60 × 15.25 mm
- Slim Pro GPS: 89 × 73 × 15 mm
Battery Compatibility
Only tested with MakerNova batteries:
- MakerNova 2000 mAh Li-Po: used in Pocket, Pocket SMA, Pocket Pro, Pocket Pro SMA, and Slim models (approx. 50 × 34 × 10 mm)
- MakerNova 4000 mAh Li-Po: used in Slim Pro GPS for extended runtime
Compatible Antennas
- 2dBi Compact Whip Antenna (internal, used on Pocket, Pocket Pro, and Slim)
- 17 cm Gizont 915 MHz SMA Antenna (used on Pocket SMA, Pocket Pro SMA, and Slim Pro GPS)
Model Variants
Choose the configuration that fits your use case:
| Variant | GPS | SMA Port | Battery | Best For |
|---|---|---|---|---|
| No | No | 2000 mAh | Simple portable mesh node | |
| Pocket SMA | No | Yes | 2000 mAh | Upgradable antennas / better range options |
| Pocket Pro | Yes (L76K GPS) | No | 2000 mAh | GPS-enabled mapping, tracking, and location-aware mesh |
| Pocket Pro SMA | Yes (L76K GPS) | Yes | 2000 mAh | GPS + external SMA antennas for maximum flexibility |
| Slim | No | No | 2000 mAh | Sleek, balanced everyday design |
| Slim Pro GPS | Yes (L76K GPS) | Yes | 4000 mAh | Longest runtime + SMA + GPS in a slim form factor |
Note: GPS modules require the Pro-style housing (Pocket Pro, Pocket Pro SMA, or Slim Pro GPS). Standard Pocket shells are not GPS compatible.
Color Options
- Custom front plate color (your choice)
- Black rear plate
- Black buttons
- Included clip (Baofeng or MOLLE-compatible)
Quick Setup
- Attach the antenna to the Heltec V4 (only for SMA variant)
- Power on, configure Meshtastic or your preferred firmware with phone or webpage.
Meshtastic® is a registered trademark of Meshtastic LLC. MeshCore is an open-source mesh networking project released under the MIT License, and its name is currently the subject of an unresolved trademark dispute; it is used here only to describe firmware compatibility. Software components referenced in this listing are released under their respective open-source licenses, see GitHub for details. No warranty is provided, use at your own risk. Always follow best practices for Li-ion battery safety, RF regulations in your region, and safe device operation.
