Head-to-head · Best Meat Thermometers

ThermoWorks RFX vs ThermoWorks Thermapen One

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

ThermoWorks Thermapen One comes out ahead by a clear margin (4.5 vs 4.9). The gap is mostly about precision-focused home cooks and professionals — read the strengths below before deciding.

Ranked #2 in Best Meat Thermometers

ThermoWorks RFX

4.5

$299

The ThermoWorks RFX Wireless Meat Probe Thermometer offers a significant upgrade over Bluetooth competitors like Meater with its stable WiFi connection and extended range. Reviewers praised its accuracy, ease of setup, and ability to track temperatures up to 1,000°F. Serious Eats reviewer Grace Kelly found it reliable for smoking and roasting, while Vindulge's Sean Martin highlighted its extensive range and precision. However, both reviewers noted the app's navigation issues and slower probe response times compared to instant-read thermometers. This thermometer is ideal for serious grillers and smokers who need reliable long-range monitoring but may not suit those prioritizing app ease-of-use or ultra-fast response times.

Strengths

— Impressive signal range with stable WiFi connection that doesn't drop during cooking
— Accurate temperature readings confirmed through ice bath and sous vide tests
— Easy setup process requiring only WiFi connection and tapping probe to Gateway

Watch-outs

— App navigation can be difficult despite being mostly intuitive
— Probe registration is slower than instant-read thermometers, taking about 22 seconds to reach 135°F from room temperature

$299 · Check Price on Amazon Full review →

Higher ratedRanked #1 in Best Meat Thermometers

ThermoWorks Thermapen One

4.9

$109

The ThermoWorks Thermapen ONE delivers industry-leading speed and accuracy, reading temperatures in one second with ±0.5°F precision. Reviewers praised its 360° auto-rotating display, waterproof construction, and motion-sensing sleep/wake modes. Food Network's Taylor Murray called it the best meat thermometer on the market overall. While it's priced at $109 and requires common AAA batteries instead of CR2032s, the superior performance makes it ideal for serious cooks who demand precision and speed over budget alternatives.

Strengths

— Reads temperature in just one second with 0.5°F accuracy
— 360° auto-rotating display that automatically adjusts orientation
— Waterproof to 39 inches depth (IP67 rating)

Watch-outs

— Expensive at $109
— Requires AAA batteries which are less common than CR2032

$109 · Check Price on Amazon Full review →

How they stack up

ThermoWorks RFX

The ThermoWorks RFX excels in wireless monitoring with its stable WiFi connection and 500-foot range, surpassing the ThermoPro TP20's radio frequency and MEATER Pro's Bluetooth range. However, it's slower to respond than the instant-read thermometers like the Thermapen One and ThermoPop 2, taking about 22 seconds to reach 135°F. While the MEATER Pro offers better temperature resistance, the RFX provides a more stable connection and easier setup process, making it ideal for long cooking sessions where reliability is key.

ThermoWorks Thermapen One

The ThermoWorks Thermapen One stands out as the fastest and most accurate instant-read thermometer, reading in just one second compared to the ThermoPop 2's 2-3 seconds and Lavatools Javelin Pro Duo's similar timeframe. While the RFX offers wireless monitoring capabilities, the Thermapen One's superior speed and precision make it the go-to choice for professional cooks who need immediate, reliable readings. Unlike the ThermoPro TP20, it features a 360° auto-rotating display and waterproof construction, making it more versatile in demanding kitchen environments.

Specs side-by-side

Spec	ThermoWorks RFX	ThermoWorks Thermapen One
Temperature Range	Up to 1,000°F	-58°F to 572°F
Accuracy	±0.9°F (±0.5°C) between 14°F and 212°F	±0.5°F
Response Time	about 22 seconds to climb to 135°F from room temp	1 second
Display	No display (view via app)	360° auto-rotating
Waterproof	IP69K, dishwasher-safe and submersible	IP67 rated
Probe Length	4.69 inches	4.3 inches
Connectivity	WiFi	—
Battery Life	Up to 60 hours with 20-minute charge	2,000 hours

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