The Flip Phone That Doesn’t Spy
Quick Model Comparison:
🔹 JUNIPER – Email + Navigation + Media + Hotspot
🔹 CYPRESS – Media + Hotspot (No Email, No Navigation)
🔹 WILLOW – Voice Calls Only (No Texting, No Apps)
Technical Specifications (All Models)
Operating System: BasicOS (Sunbeam’s privacy-focused AOSP fork)
Build Quality: Rugged construction designed for real-world durability
Network Compatibility: Works with major US carriers (Verizon, AT&T, T-Mobile and related MVNOs)
DETAILED CARRIER COMPATIBILITY LIST HERE
SIM Card: Micro-SIM required (not included)
Charging: USB-C charging with included cable and dock
Battery Life: Multi-day usage depending on model and usage patterns
SAR Values: Head = 0.707 W/kg – Body = 1.588 W/kg
Body: Rugged flip phone design built for daily use
What’s Included
- Sunbeam F1 Pro device (model selected)
- USB-C charging cable
- Charging dock
- User manual
- MARK37 Privacy Roadmap Needs Audit & Progress Tracker
SIM card not included – use your existing SIM from a compatible carrier
Choose Your Digital Philosophy: Three Models Available
F1 Pro Juniper
The Connected Minimalist
Perfect for the digital professional who needs essential connectivity without the digital chaos.
Features:
- SMS, Voice Messaging, Picture Messaging
- Camera, Picture Gallery, Music Player, Sound Recorder, File Manager
- Waze Navigation, Here Navigation, Weather
- Bluetooth, WiFi, Hotspot functionality
- Text-only Email (no HTML distractions)
- Touch Screen interface
Best For: The digital professional who needs email and navigation for work, but refuses to carry a device designed to steal attention every 30 seconds.
F1 Pro Cypress
Essential Connectivity, Zero Distractions
The sweet spot between functionality and simplicity.
Features:
- SMS, Voice Messaging, Picture Messaging
- Camera, Picture Gallery, Music Player, Sound Recorder, File Manager
- Bluetooth, WiFi, Hotspot functionality
- Touch Screen interface
What You Won’t Find: No email, no navigation apps, no weather – just pure communication and media tools.
Best For: The digital detox graduate who wants modern connectivity without temptation to doom-scroll or get distracted by work emails.
F1 Pro Willow
Pure Communication
For those who want a phone to be just a phone.
Features:
- Voice calls only
- No texting
- Classic flip phone experience
- No data collection, no tracking, no surveillance
Best For: The digital purist who believes a phone should make phone calls, period. Perfect as emergency backup or for absolute communication security.
We’ve Been Hunting for This Phone for Over 3 Years
Most “dumb phones” on the market today aren’t actually dumb at all.
Think about it: that basic flip phone you thought would protect your privacy? It’s nearly guaranteed to be running software controlled by either Google or Chinese manufacturers. You escaped the smartphone surveillance trap, only to walk into a different kind of digital cage.
That’s exactly why we’re excited to offer the Sunbeam Wireless F1 Pro Series.
We’ve tested these devices and have fallen in love with them. These are the first flip phones I’ve been genuinely excited about in years.
Here’s What Makes These Different
While other companies slap together basic phones with whatever operating system they can license cheaply, Sunbeam Wireless took a completely different approach. They built BasicOS – their own custom fork of the Android Open Source Project.
Translation: No Google. No China. No data harvesting. Just a phone company in Memphis, Missouri that believes your privacy shouldn’t be for sale.
Think of BasicOS as the GrapheneOS of flip phones – modern functionality with complete control over your digital footprint.
Meet Sunbeam Wireless
Founded by Sterling Martin and Nelson Hoover in Memphis, Missouri, Sunbeam Wireless was created specifically to counter the tech industry’s relentless push toward digital addiction. While other companies ask “how can we get users to spend more time on their devices?” Sunbeam asks “how can we help people reclaim their time and attention?”
As someone who’s spent years helping people escape Big Tech surveillance, I’ve watched too many people trade their smartphone for a flip phone that still tracks them. Sunbeam Wireless gets it. They’re building phones for people who want technology to serve them – not the other way around.
This is intentional technology choice, not technological compromise or regression.
Detailed FAQ from Sunbeam Wireless
Product Documentation from Sunbeam Wireless
Video Tutorials from Sunbeam Wireless
Details on the Sunbeam Wireless Premium Subscription Service
- Voice-to-Text: Consists of voice-to-text transcription for writing text messages. You simply press and hold the Message button while speaking, and your message is accurately typed out as text
- Weather: Â Adds access to extended forecasts, additional hourly forecast, and radar in Weather
- Navigation: Adds Live Traffic, a POI Search (Points of Interest, such as businesses), and truck routing
*Details on how to sign up for the Sunbeam Wireless Premium Subscription is provided in the packaging with the device.
Why Choose Sunbeam Through MARK37?
Privacy Expertise: We understand how the Sunbeam F1 Pro series fits into a comprehensive digital sovereignty strategy.
Integration Support: We can help you transition from smartphone dependence to intentional technology use.
Quality Assurance: We’ve tested these devices extensively and can confidently recommend them as alternatives to both surveillance smartphones and inferior flip phones.
Mission Alignment: Like MARK37, Sunbeam Wireless exists to help people reclaim control over their digital lives.
Educational Resources: Access to our privacy training and digital minimalism guides.
Shipping & Returns
SHIPPING:
Devices typically ship within 3-7 business days. Worst case scenario may be 10 business days during high-demand periods.
90-DAY RETURN POLICY:
We offer a full refund or exchange for any order received in defective or damaged condition, or missing items, within 90 days of purchase. Please contact us at support@mark37.com and we will provide a return shipping label if needed.
If a return and refund is requested simply because you no longer feel willing to transition off BigTech, once the item has been returned and received in the same physical working condition it was sent, a refund will be issued minus a $75 restocking fee.