Heltec V3 vs LILYGO T-Beam: Which Meshtastic Board Should You Buy?
The LILYGO T-Beam Supreme wins for mobile outdoor use with its built-in GPS, 18650 battery holder, and solar charging. The Heltec WiFi LoRa 32 V3 wins for stationary nodes and getting started at half the cost. Both run Meshtastic identically — the difference is portability features.
Head-to-Head Comparison
| Category | Winner | Why |
|---|---|---|
| GPS and Location | LILYGO T-Beam Supreme | The T-Beam Supreme has a built-in L76K GPS module for location sharing on the mesh network. The Heltec V3 has no GPS — you would need to add an external module. For hiking, tracking, and outdoor use, the T-Beam's GPS is essential. |
| Battery and Power | LILYGO T-Beam Supreme | The T-Beam holds a standard 18650 battery (2600-3500mAh, easily swappable) plus solar panel input for permanent outdoor deployment. The Heltec V3 uses small LiPo packs (typically 500-1000mAh). For multi-day field use, the T-Beam's battery system is superior. |
| Size and Portability | Heltec WiFi LoRa 32 V3 | The Heltec V3 is 50mm long vs the T-Beam's 100mm. Half the size makes the Heltec easier to mount in enclosures, carry in a pocket, or hide in a deployment. The T-Beam's length comes from the 18650 battery holder. |
| Cost | Heltec WiFi LoRa 32 V3 | The Heltec V3 costs roughly half the T-Beam Supreme. For building a mesh network with multiple nodes, the Heltec's lower cost means more nodes for the same budget — and more nodes means better mesh coverage. |
| LoRa Range | LILYGO T-Beam Supreme | Both use the SX1262 radio, but the T-Beam achieves slightly better range (up to 15km vs 10km) due to better antenna design and ground plane. In practice, real-world range depends more on antenna choice and terrain than board design. |
Which Board for Your Project?
| Use Case | Recommended | Why |
|---|---|---|
| Hiking group communication | LILYGO T-Beam Supreme | GPS shares everyone's location. 18650 battery lasts days. Solar keeps it charged on your pack. This is the use case the T-Beam was designed for. |
| Home mesh relay node | Heltec WiFi LoRa 32 V3 | Plugged into USB power, no GPS needed, half the cost. The Heltec's compact size fits in a window-mounted enclosure. One Heltec per floor extends mesh coverage through a building. |
| Emergency preparedness kit | LILYGO T-Beam Supreme | Solar charging works during power outages. 18650 batteries are standard and stockpileable. GPS enables search-and-rescue location sharing. The T-Beam is the more self-sufficient device. |
| Building a large mesh network on a budget | Heltec WiFi LoRa 32 V3 | Two Heltecs cost about the same as one T-Beam. More nodes = better mesh coverage. Use Heltecs for the relay infrastructure and one T-Beam as your mobile personal node. |
Where to Buy
Final Verdict
Buy the T-Beam Supreme as your personal mobile Meshtastic node — it has everything you need for hiking, camping, and emergency communication in one device. Buy Heltec V3 boards for stationary relay nodes, home installations, and expanding your mesh network affordably. Most Meshtastic setups benefit from both: T-Beam in your pack, Heltecs mounted at high points.
Frequently Asked Questions
Can I use both in the same mesh network?
Yes. All Meshtastic devices interoperate regardless of hardware. A T-Beam and Heltec V3 communicate seamlessly on the same mesh. Mix and match based on each node's role.
Do both boards have the same LoRa range?
Both use the SX1262 radio. The T-Beam achieves slightly better range (15km vs 10km theoretical) due to better antenna design. In practice, antenna choice and mounting height matter more than board differences.
Can I add GPS to the Heltec V3?
Yes, by connecting an external GPS module (like a BN-880) via serial. But this adds cost, wiring, and complexity. If GPS is important, the T-Beam is the simpler solution.
Which is better for a first Meshtastic device?
The Heltec V3 for the lowest cost of entry. Flash Meshtastic firmware, connect an antenna, power on — you have a working node in minutes. Add a T-Beam later when you want GPS for mobile use.
How many nodes do I need for a mesh network?
Minimum two (point-to-point). Three or more nodes create a true mesh with redundant paths. For covering a neighborhood, 3-5 Heltec V3 nodes at high points plus personal T-Beam devices is a good starting setup.