Mid-Range Devices Mid-Range Devices Mid-range devices ($25 - $50) add useful features: GPS, better displays, higher transmit power, lower power consumption, or more robust form factors. (Prices below are as of 2026-06-08 and shift over time.) Heltec V4 - $25 - $35 (as of 2026-06-08) A direct upgrade over the V3. The V4 adds a solar charging interface, making it well-suited for small solar-powered repeater builds. It uses the same ESP32-S3 family + SX1262 as the V3, though the V4 differs in memory (V3 = ESP32-S3FN8 with 8 MB integrated flash; V4 = ESP32-S3R2 with 2 MB PSRAM + 16 MB external flash). Its LoRa output is the SX1262's native level (~21-22 dBm) unless an integrated PA is confirmed on Heltec's spec sheet. TX power: ~22 dBm (SX1262 native; confirm against Heltec's current spec - the often-repeated "28 dBm" figure is not documented in Heltec's datasheet and would require an external PA) Solar input: Yes (dedicated solar charging circuit) Display: OLED LilyGo T-Beam - $35 - $45 (as of 2026-06-08) A full-featured ESP32 board with GPS built in and an 18650 battery holder. The T-Beam is one of the most popular mobile nodes because position reporting works out of the box. The 18650 form factor means you can use widely available rechargeable cells. MCU: ESP32 GPS: Built-in (the older v1.1 uses a u-blox NEO-6M; current revisions ship newer u-blox modules such as the M8N/M10) - specify by revision when it matters Battery: 18650 holder (cell not included) Connector: SMA antenna Heltec T114 - $30 - $45 (as of 2026-06-08) Uses an nRF52840 rather than ESP32, which draws significantly less power. The 1.14" TFT colour display is a step up from OLED. Solar-ready. Best choice for a low-power personal node that also has a decent screen. MCU: nRF52840 GPS: Optional (offered with or without an onboard GPS module depending on variant) Display: 1.14" TFT colour Power: Lower than ESP32 equivalents Flashing: DFU (double-tap reset) Wio Tracker L1 - $29.90 (as of 2026-06-08) Bare board with a 1.3" OLED display and GPS (L76K). nRF52840-based. Good value if you plan to build it into a custom enclosure. Wio Tracker L1 Lite - $27.90 (as of 2026-06-08) The most affordable Wio option. A bare board with LoRa and an onboard L76K GPS - the difference versus the standard L1 is that the Lite drops the OLED screen (and ships without a case or battery), not GPS. Good choice if you want position reporting at the lowest price and don't need the built-in screen. SenseCAP T1000-E - $35 - $45 (as of 2026-06-08) Credit-card sized device with IP65 weather resistance, GPS, and nRF52840. One of the most compact GPS-capable options available. Ships pre-assembled in a rugged housing - no enclosure work needed. Form factor: 85 × 55 × 6.5mm (credit card size) IP rating: IP65 GPS: Yes MCU: nRF52840 Mid-Range Summary Device Price MCU GPS Display Solar Heltec V4 $25 - $35 ESP32-S3 No OLED Yes LilyGo T-Beam $35 - $45 ESP32 Yes OLED No Heltec T114 $30 - $45 nRF52840 Optional TFT 1.14" Yes Wio Tracker L1 $29.90 nRF52840 Yes OLED No Wio Tracker L1 Lite $27.90 nRF52840 Yes - No SenseCAP T1000-E $35 - $45 nRF52840 Yes None No Prices in this table are as of 2026-06-08.