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Description
Adafruit FONA - Mini Cellular GSM Breakout uFL VersionRing, Ring! Who's that callin'? It's your breadboard! Introducing Adafruit FONA MiniGSM, an adorable all in one cellular phone module that lets you add voice, text, SMS and data to your project in an adorable little package. This module measures only 1. 75"x1. 25" but packs a surprising amount of technology into it's little frame. At the heart is a GSM cellular module (we use the latest SIM800) the size of a postage stamp. This module can do just
Ring, Ring! Who's that callin'? It's your breadboard! Introducing Adafruit FONA MiniGSM, an adorable all-in-one cellular phone module that lets you add voice, text, SMS and data to your project in an adorable little package.
This module measures only 1.75"x1.25" but packs a surprising amount of technology into it's little frame. At the heart is a GSM cellular module (we use the latest SIM800) the size of a postage stamp. This module can do just about everything. This version has a uFL connector.
- Quad-band 850/900/1800/1900MHz - connect onto any global GSM network with any 2G SIM (in the USA, T-Mobile is suggested)
- Make and receive voice calls using a headset OR an external 8Ω speaker + electret microphone
- Send and receive SMS messages
- Send and receive GPRS data (TCP/IP, HTTP, etc.)
- Scan and receive FM radio broadcasts (yeah, we don't exactly know why this was included but it works really well)
- PWM/Buzzer vibrational motor control
- AT command interface with "auto baud" detection
Sounds delicious, right? So we plated this fine module onto a little breakout with all the extras you need to make your next project shine:
- Onboard LiPoly battery charging circuitry so you can take your project on the go. Use any 500mAh+ LiPoly or LiIon battery and recharge over the MicroUSB when necessary. Two LEDs let you know when its charging and done
- Standard 4-pole TRRS headphone jack. Use any 'Android' or 'iPhone'-compatible headset with mic
- Breakouts for external 8Ω speaker and electret mic if you don't want to use a headphone
- Level shifting circuitry so you can run it with 2.8V to 5V logic.
- Vibrational motor (buzzer) driver so you can have noiseless notifications
- uFL connections for external antenna
- Indicator LEDs for power and network connectivity
- Standard SIM slides into the back
This is our Release Candidate for hackers and advanced makers. We're still adding library support for all the various things the FONA can do but there may be updates as FONA is used around the world!
On its own, this module can't do anything. It requires a microcontroller to drive it! We suggest and use an Arduino but any 3-5V microcontroller with a UART can send and receive commands over the RX/TX pins.
You will also need some required accessories to make FONA work. These are not included!
- SIM Card! A 2G Mini SIM card is required to do anything on the cellular network. US AT&T no longer sells 2G SIMs and will shut off their 2G network, so for American customers we recommend any T-Mobile or reseller (SIMPLE mobile, etc) that uses the T-Mobile network.
- Lipoly Battery - 500mAh or larger! This 500mAh battery, or this 1200mAh will work great.
- MicroUSB cable for charging the battery.
- External Antenna - We like this slim sticker-type, which plugs right in. Alternatively, this straight SMA one or this right-angle SMA one will work but you'll also need a uFL to SMA adapter cable so you can connect to your SMA antenna
Features
- Dimensions w/Components: 45mm x 34mm x 8mm / 1.8" x 1.3" x 0.3"
- Dimensions of PCB: 45mm x 32mm x 2mm / 1.8" x 1.3" x .1"
- Weight: 9.0g
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4.7 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Fast shipping
Color: Blue, Memory Storage Capacity: 128 GB, Set name: Wi-Fi + Cellular
Item as described, mint condition, works great came with charger block and fast shipping only issue I had is with shipping carrier. FEDEX stinks showed arrival as Monday, was delivered 1/21 10:45 am yet their system showed package was in Louisville, Tn at this time later in the evening I checked again showed delivered. No package by my door from FedEx had to go to their website to find picture where the left it. Was found at entrance to my complex on top of mailboxes where anyone could have of taken it…
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Reviewed in the United States on January 22, 2026
★★★★★ 5
Very satisfied with purchase!
Color: Silver, Memory Storage Capacity: 256 GB, Set name: Wi-Fi + Cellular
Everything worked as advertised. Nice 11rh generation iPAD.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Perfect condition
Color: Silver, Memory Storage Capacity: 512 GB, Set name: Wi-Fi + Cellular, Color: Silver, Memory Storage Capacity: 512 GB, Set name: Wi-Fi + Cellular
Works perfectly fine, no scratches or dents. Battery life is great. Worth the purchase.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Just Love this.... Read On!
Color: Silver, Memory Storage Capacity: 128 GB, Set name: Wi-Fi + Cellular
Like knew and seems to have been powered on one time only. Apple treat it as a new device.
Its spotless and works great.
I have had several ipad pro's and decided to by this instead and I actually prefer it. It does everything I could do with my ipad pro 2020 and then some. Its faster, good cameras. The e-sim card works great though I do wish it had a physical sim card slow.. oh well!
The battery life is really excellent, it was quick to set up via a transfer from my old device. I added a case that looks like a fancy note book and love it. This helps with drops and scratches. I have not added a screen protector yet.
The storage capacity is the same as my old ipad pro, I will never use 128 gb anyways...
To sum up, this gets 10 out of 10... and its a great replacement for a ipad pro!
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Reviewed in the United States on November 13, 2025
★★★★★ 5
Great conditions just like new
Color: Yellow, Memory Storage Capacity: 128 GB, Set name: Wi-Fi + Cellular
Hey I usually don’t leave reviews but I do feel
Like this one needed one thank you for sending out the iPad well packed .. I received it in great condition it’s been working pretty good no complains I got it for my 3 year old son who’s on his third iPad lol hopefully this is his last , just like new I love it no scratches nothing literally brand new thank you
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Reviewed in the United States on May 24, 2026
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