$64.98
Buy Now, Pay Later
As low as
$10.83
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 1 left in stock, order soon!
Arrives
within 30 days
Recently Viewed
At a glance
- Condition
- New
- Model
- Cingular Flex 2
- Storage
- 4 GB
- Memory
- 512 MB
- Screen size
- 2.8 in
- Weight
- 0.21 kg
- Color
- Classic Navy
- Warranty
- 90 Day Warranty
Features 5
- Enjoy crisp visuals on the vibrant display, whether you're watching videos, browsing the web, or scrolling through social media.
- 4GB Storage: Offers plenty of space for apps, photos, and essential files, all while maintaining smooth performance.
- Sleek Design: The Classic Navy color gives this phone a professional yet modern look. Lightweight and comfortable to hold, perfect for everyday use.
- Camera: Capture memorable moments with the built-in camera, offering clear photos and videos.
- Efficient Performance: Powered by a reliable processor, the Cingular Flex 2 ensures smooth multitasking and fast app loading times.
Description
AT&T 6723D Cingular Flex 2, 4GB, Unlocked Phone (Classic Navy) Upgrade your mobile experience with the AT&T 6723D Cingular Flex 2! This unlocked phone is a perfect choice for those looking for a sleek, stylish, and feature-packed device with reliable performance. Available in a sophisticated Classic Navy color, the Cingular Flex 2 is equipped with 4GB of storage, providing plenty of space for apps, photos, and more. Whether you're using it for work, social media, or entertainment, this phone offers smooth performance and versatility.
Specs 43
| Brand | AT&T |
|---|---|
| Operating System | KaiOS |
| Ram Memory Installed Size | 512 MB |
| CPU Model | Mediatek Dimensity 1100 |
| CPU Speed | 1.3 GHz |
| Memory Storage Capacity | 4 GB |
| Screen Size | 2.8 inches |
| Resolution | 720 x 1520 |
| Refresh Rate | 60 |
| Model Name | Cingular Flex 2 |
| RAM Memory Installed | 512 MB |
| Processor Series | Mediatek Dimensity 1100 |
| Processor Speed | 1.3 GHz |
| Color | Classic Navy |
| SIM Card Slot Count | Single SIM |
| Connector Type | USB Type C |
| Form Factor | Flip |
| Sim Card Size | Nano |
| Water Resistance Level | Not Water Resistant |
| Headphones Jack | [Unknown] |
| Flash Memory Supported Size Maximum | 4 GB |
| Rear Facing Camera Photo Sensor Resolution | 2 mp |
| Number of Rear Facing Cameras | 1 |
| Number of Front Cameras | 1 |
| Battery Capacity | 1400 mAh |
| Battery Power | 2800 Ah |
| Item Weight | 0.21 kg |
| Phone Talk Time | 6.4 hours |
| Average Battery Life Talk Time | 6 hours |
| GPS Geotagging Functionality | True |
| Display Type | LCD |
| Display Resolution Maximum | 720 x 1440 |
| Wireless Provider | Unlocked |
| Cellular Technology | 4G |
| Connectivity Technology | 4G LTE |
| Wireless Network Technology | LTE |
| Built-In Media | Power Adapter |
| Manufacturer | AT&T |
| Specific Uses For Product | Entertainment |
| UPC | 642461111217 |
| Unit Count | 1 Count |
| Video Capture Resolution | 1080p |
| Frame Rate | 30 fps |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
within 30 days
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Top Amazon Reviews
Great phone.
Phone was as described. Works great.
Reviewed in the United States on July 26, 2026 by Tiwanna
Didn't work for long
We are 5 months in and the phone is broken.
Reviewed in the United States on June 3, 2026 by Amazon Customer
Phone for 98 years old mother
Very old fashion but easier for seniors to use.
Reviewed in the United States on August 30, 2025 by Larry
this phone leaves a lot to be desired
i do not care for this phone at all, it is a major pain in the ass to text and having to select abc for every single text is so stupid. i do not like the set up for contacts and trying to send messages, i miss my TCL phone and really really really do not like this phone at all
Reviewed in the United States on July 7, 2026 by CINDY KELLIE
Good phone
Perfect phone for my husband.
Reviewed in the United States on July 13, 2026 by Charlotte
Good feature/flip/dumb phone, but know what you are buying.
It's a flip phone. Had it for about a week now. Some of the basics: - No touch screen. External screen is normally off when in standby but turns on when receiving notifications, being plugged in, or interacting with any of the buttons. Fingerprint magnet but I like that the background here also switches to whatever you set your home screen background to, adding a little extra bit of personalization. You can set a PIN if privacy is a concern. OS Languages included are English, Spanish, French, Portuguese, Chinese, and Vietnamese. Individual apps sometimes have options beyond that. - Unlocked, which means in theory that it works with any carrier. Have had no issues using it with Tello in the US. SIM slot is located behind battery on back of device. - Runs KaiOS. Do research to see if that operating system works for you. You are limited to the apps on KaiOS store and what comes preinstalled on phone. This model has YouTube (not very practical) and a feature-reduced version of Google Maps. There are other utilities like email, weather, and a music player for downloaded music (no streaming here). QR code reader does not seem to be able to read any QR codes tested so far. There are misleading FULL SCREEN ADVERTISEMENTS on any apps downloaded from the store (weather, news, and podcast apps all count). I've found them unobtrusive but beware if phone is intended for a less internet-savvy senior. - Unsurprisingly camera quality is very crude, but you can take photos and videos easily. There is a physical button on the side of the device that acts as a camera shortcut. - Texting has group chat functionality but no voice to text. Can't seem to send photos at all, I get an error message every time. Media sent to me has been hit or miss. Sometimes I receive photos texted to me and sometimes I don't. Bugs + other negative qualities: beyond the advertisements in utility apps and general bugginess, I've found the interface to be overall slow (yes, even for a flip phone). Twice now the entire OS has crashed without explanation. The phone has issues staying consistently connected to internet, which means getting spammed with audio notifications that the WiFi is disconnected even though I disabled all notices for network settings. One of the most major downsides is the battery life. It drains much quicker than my cheap android smartphone and charges much slower as well. Overall, I'm using this as an alternative to a smartphone and will be keeping it for now, but probably replacing it in the near future with a pricier, more stable dumbphone. Updating this review if anything changes.
...
show more
Reviewed in the United States on May 28, 2025 by Walter
Usability
Great flip phone for the elderly
Reviewed in the United States on July 15, 2026 by kathleen dalseg
Easy to access all calls
Replaces an older version that was failing. Does not transfer any from a previous version. I had to manually add all infor back in.
Reviewed in the United States on July 5, 2026 by Flower Child