Anker Roav SmartCharge F2 vs Nulaxy KM18 FM Transmitter
We compare the Anker Roav SmartCharge F2 and Nulaxy KM18 FM Transmitter head-to-head on performance, features, value, and more. Here's which one wins.
Anker Roav SmartCharge F2
Scored 9.2/10 in our testing
Anker Roav SmartCharge F2
Best Bluetooth FM transmitter with car locator and dual USB charging
Nulaxy KM18 FM Transmitter
Best Bluetooth FM transmitter with large LCD and bass boost
Score Breakdown
| Anker Roav SmartCharge F2 | Category | Nulaxy KM18 FM Transmitter |
|---|---|---|
| 9/10 ✓ | Performance | 8.5/10 |
| 9.2/10 ✓ | Features | 8.8/10 |
| 9.3/10 ✓ | Ease of Use | 9/10 |
| 9.5/10 | Value | ✓ 9.6/10 |
| 9.2/10 ✓ | Overall | 8.9/10 |
Specs Comparison
| Anker Roav SmartCharge F2 | Spec | Nulaxy KM18 FM Transmitter |
|---|---|---|
| Bluetooth 5.0 | Bluetooth | 1.44-inch LCD — song titles |
| Dual USB — 2.4A total | Charging | Bluetooth 5.0 |
| Car locator via Roav app | Feature | FM + bass boost button |
| FM transmitter — 87.5-108 MHz | Audio | USB + microSD + AUX |
| Built-in mic — hands-free calls | Mic | CVC noise cancellation mic |
Anker Roav SmartCharge F2
Pros
- + Bluetooth 5.0 — stable pairing
- + Car locator via app
- + Dual USB charging
- + Anker build quality
Cons
- − FM quality depends on interference
- − No AUX output
- − App needed for car locator
- − Small display
Nulaxy KM18 FM Transmitter
Pros
- + Large LCD — song titles visible
- + Bass boost button
- + MicroSD + AUX inputs
- + Under $20
Cons
- − FM quality varies by area
- − Bass boost distorts at max
- − Plastic build
- − USB 2.1A — slower charging
Our Verdict
Based on our scoring, the Anker Roav SmartCharge F2 comes out on top with an overall score of 9.2/10. The Anker Roav SmartCharge F2 does everything well. Bluetooth 5.0 is rock-solid. The FM transmitter broadcasts to any car radio. Dual USB ports charge your phone while streaming. The Roav app remembers where you parked. Built-in microphone handles hands-free calls with noise cancellation.
Buy the Anker Roav SmartCharge F2 on AmazonRead the full Best Car Bluetooth Adapters 2026 guide for complete reviews of all 4 products.