Samsung Galaxy Z Flip4 SM-F721B 17 cm (6.7") Dual SIM Android 12 5G USB Type-C 8 GB 256 GB 3700 mAh Blue
Product Technical Specification
Display | |
Display diagonal | 6.7 |
Screen shape | Flat screen |
Display type | OLED |
Display technology marketing name | Dynamic AMOLED 2X |
Display resolution | 2640 x 1080 |
Maximum refresh rate | 120 |
High Dynamic Range (HDR) supported | Yes |
High Dynamic Range (HDR) technology | High Dynamic Range 10+ (HDR10 Plus) |
Pixel density | 425 |
Second display | Yes |
Second display diagonal | 1.9 |
Second display resolution | 512 x 260 |
Second display type | Super AMOLED |
Second display pixel density | 302 |
Processor | |
Processor family | Qualcomm |
Processor model | 8+ Gen 1 |
Processor cores | 8 |
Processor boost frequency | 3.18 |
Storage | |
RAM capacity | 8 |
Internal storage capacity | 256 |
Compatible memory cards | Not supported |
Camera | |
Rear camera resolution (numeric) | 12 |
Second rear camera resolution (numeric) | 12 |
Rear camera aperture number | 2.2 |
Second rear camera aperture number | 1.8 |
Rear camera pixel size | 1.12 |
Second rear camera pixel size | 1.8 |
Rear camera field of view (FOV) angle | 123 |
Second rear camera field of view (FOV) angle | 83 |
Digital zoom | 10 |
Front camera type | Single camera |
Front camera resolution (numeric) | 10 |
Front camera aperture number | 2.4 |
Front camera pixel size | 1.22 |
Front camera field of view (FOV) angle | 80 |
Rear camera flash | Yes |
Flash type | LED |
Video capture resolution (max) | 3840 x 2160 |
Video recording modes | 720p,1080p |
Rear camera type | Dual camera |
Auto focus | Yes |
Time lapse mode | Yes |
Video stabilizer | Yes |
Image stabilizer | Yes |
Image stabilizer type | Optical Image Stabilization (OIS) |
Night mode | Yes |
Panorama | Yes |
Network | |
SIM card capability | Dual SIM |
Mobile network generation | 5G |
SIM card type | NanoSIM + eSIM |
4G standard | LTE |
Wi-Fi | Yes |
Wi-Fi standards | 802.11a,802.11b,802.11g,Wi-Fi 4 (802.11n),Wi-Fi 5 (802.11ac),Wi-Fi 6 (802.11ax) |
Bluetooth | Yes |
Bluetooth version | 5.2 |
MIMO | Yes |
Near Field Communication (NFC) | Yes |
Ports & interfaces | |
USB port | Yes |
USB connector type | USB Type-C |
Messaging | |
Short Message Service (SMS) | Yes |
Multimedia Messaging Service (MMS) | Yes |
Yes | |
Design | |
Form factor | Clamshell |
Product colour | Blue |
International Protection (IP) code | IPX8 |
Performance | |
Fast charging | Yes |
Wireless charging | Yes |
Fingerprint reader | Yes |
Face recognition | Yes |
Speakerphone | Yes |
Navigation | |
GPS (satellite) | Yes |
GLONASS | Yes |
BeiDou | Yes |
Galileo | Yes |
Position location | Yes |
Multimedia | |
Speakers | Stereo |
Audio system | Dolby Atmos |
Audio formats supported | 3GA,AAC,AMR,APE,AWB,DFF,DSF,FLAC,IMY,M4A,MID,MIDI,MP3,MXMF,OGA,OGG,RTTTL,RTX,WAV,XMF |
Video formats supported | 3G2,3GP,AVI,FLV,M4V,MKV,MP4,WEBM |
Software | |
Platform | Android |
Operating system installed | Android 12 |
Virtual assistant | Samsung Bixby |
Battery | |
Battery capacity | 3700 |
Sensors | |
Proximity sensor | Yes |
Accelerometer | Yes |
Ambient light sensor | Yes |
Gyroscope | Yes |
Barometer | Yes |
Geomagnetic sensor | Yes |
Hall sensor | Yes |
Weight & dimensions | |
Width | 71.9 |
Depth | 6.9 |
Height | 165.2 |
Weight | 187 |
Folded width | 71.9 |
Folded depth | 17.1 |
Folded height | 84.9 |
Certificates | |
Head SAR (EU) | 1.151 |
Body SAR (EU) | 1.198 |
Extremities SAR (EU) | 2.75 |
Packaging content | |
Quick start guide | Yes |
Cables included | USB Type-C |
SIM card ejector pin | Yes |
Technical details | |
Repairability index | 7.6 |
Delivery Options

Economy Delivery (UK)

Fast & Tracked by Courier (UK)
The phone that claps back
Meet the new neutrals
Choose a colour that goes with everything — but looks like nothing else. A hazy finish on the glass creates a soft contrast to the high-shine, glossy metal frame. Select from four shades: Bora Purple, Graphite, Pink Gold and Blue.
Fits all your fits
The era of planning looks around your phone is over. Small but mighty when folded, Galaxy Z Flip4 is a compact full-sized smartphone, and just the right size to slip in a pocket when it's time to slay.
Flex your photo skills
Go ahead, flex on them
Introducing FlexCam, a versatile, hands-free camera experience. Take advantage of your phone’s agile angles to capture group shots, selfies and videos from mind-blowing perspectives and impressive true-to-life detail — even in your go-to social apps.
But first, let me take a Selfie
Without opening your phone, take selfies with the Rear Camera while the Cover Screen gives you a real-time preview. Check yourself from afar with a full-screen viewfinder, or tap to see the original ratio to make sure everyone is in frame. And with new software upgrades, Quick Shot can flex open until FlexCam takes over, so you can capture hands-free photos at angles high and low.
Show off your dark side
Live your best nightlife
The night just got brighter with Nightography on the Rear Camera. Details are brought to light even in the dark with bigger pixels on the Wide Camera. Say cheese!
Nightography isn't just for stills — it's also got video skills. When the action gets going, recordings stay smooth, not shaky, with enhanced OIS and VDIS. Powerful processing allows Super Night Solution to minimize noise so clips of the crew stay clear well into the night.
Withstands drips and drops
Holds up from flex to flat
The 6.7-inch display unfolds a beautiful view thanks to Ultra Thin Glass.3 Advanced durability makes it stronger than ever — staying tough through more than 200,000 folds.
Flippin' strong
From the inside out, Galaxy Z Flip4 is made to be durable. These are our toughest foldables ever with exclusive Corning® Gorilla® Glass Victus®+. And the hinge is protected by Armor Aluminum — our toughest aluminum frame.
Still unafraid of water
Water you worried about? These are the world’s first water-resistant foldable smartphones. It can hang out in 1.5 meters of water for up to 30 minutes without breaking a sweat.
Accidents can be forgiven
Enroll in a worry-free Samsung Care+ to stay protected from accidental damage.
Share with the squad
Catch up via video chat on Google Meet.8 Maybe even do a movie night from your phone, co-watching high-quality video with your friends through Live sharing. With synced videos, catch everyone's reactions to the action in real time.
Give your feed a glow-up
Content creation just got easier. FlexCam holds its own to broaden your directorial POV, letting you film yourself, your friends or your actors from fresh new angles.7 And once your movie is premiere-ready, simply upload it to your social media for some well-deserved accolades.
Power to the pocket
With this much juice, you can let every call go into overtime. An upgraded 4nm processor works with the long-lasting 3700mAh (typical) battery to power through the hours.10,11
When it's low, plug in for Super Fast Charging or bypass the cord with Fast Wireless Charging 2.0.12 With all that power to spare, you can even share a charge with your friend or your earbuds with Wireless PowerShare.
The window to your world
Put your style on display
With a customisable 1.9-inch Cover Screen, you get yet another canvas to play with.15 Change it up as much as you want using your videos, photos or your own AR emoji to personalise the clock face. With this much control, you can easily update it with your mood, the weather or to match your outfits.
Glance, act and go
Your daily digital regulars, right on the Cover Screen. Control your phone with taps and swipes on the 1.9-inch Cover Screen.15 Access Quick Settings, reply to texts and add widgets to keep apps at your fingertips — no Main Screen necessary.
Better rest is all in the wrist
Checking up on yourself just got easier. Track your sleep patterns right from your wrist with Galaxy Watch5 making note of your sleep patterns and more.16 Once it gets to know you, you can find out your sleep animal and get useful tips to help you make the most of your downtime.
The connected power of Samsung Galaxy
Old phone, meet new phone
Smart Switch makes the transition between your phone and Galaxy Z Flip4 simple — even if you don't already have a Samsung Galaxy. In just a few steps it brings over your photos, texts, data and more.
Display | |
Display diagonal | 6.7 |
Screen shape | Flat screen |
Display type | OLED |
Display technology marketing name | Dynamic AMOLED 2X |
Display resolution | 2640 x 1080 |
Maximum refresh rate | 120 |
High Dynamic Range (HDR) supported | Yes |
High Dynamic Range (HDR) technology | High Dynamic Range 10+ (HDR10 Plus) |
Pixel density | 425 |
Second display | Yes |
Second display diagonal | 1.9 |
Second display resolution | 512 x 260 |
Second display type | Super AMOLED |
Second display pixel density | 302 |
Processor | |
Processor family | Qualcomm |
Processor model | 8+ Gen 1 |
Processor cores | 8 |
Processor boost frequency | 3.18 |
Storage | |
RAM capacity | 8 |
Internal storage capacity | 256 |
Compatible memory cards | Not supported |
Camera | |
Rear camera resolution (numeric) | 12 |
Second rear camera resolution (numeric) | 12 |
Rear camera aperture number | 2.2 |
Second rear camera aperture number | 1.8 |
Rear camera pixel size | 1.12 |
Second rear camera pixel size | 1.8 |
Rear camera field of view (FOV) angle | 123 |
Second rear camera field of view (FOV) angle | 83 |
Digital zoom | 10 |
Front camera type | Single camera |
Front camera resolution (numeric) | 10 |
Front camera aperture number | 2.4 |
Front camera pixel size | 1.22 |
Front camera field of view (FOV) angle | 80 |
Rear camera flash | Yes |
Flash type | LED |
Video capture resolution (max) | 3840 x 2160 |
Video recording modes | 720p,1080p |
Rear camera type | Dual camera |
Auto focus | Yes |
Time lapse mode | Yes |
Video stabilizer | Yes |
Image stabilizer | Yes |
Image stabilizer type | Optical Image Stabilization (OIS) |
Night mode | Yes |
Panorama | Yes |
Network | |
SIM card capability | Dual SIM |
Mobile network generation | 5G |
SIM card type | NanoSIM + eSIM |
4G standard | LTE |
Wi-Fi | Yes |
Wi-Fi standards | 802.11a,802.11b,802.11g,Wi-Fi 4 (802.11n),Wi-Fi 5 (802.11ac),Wi-Fi 6 (802.11ax) |
Bluetooth | Yes |
Bluetooth version | 5.2 |
MIMO | Yes |
Near Field Communication (NFC) | Yes |
Ports & interfaces | |
USB port | Yes |
USB connector type | USB Type-C |
Messaging | |
Short Message Service (SMS) | Yes |
Multimedia Messaging Service (MMS) | Yes |
Yes | |
Design | |
Form factor | Clamshell |
Product colour | Blue |
International Protection (IP) code | IPX8 |
Performance | |
Fast charging | Yes |
Wireless charging | Yes |
Fingerprint reader | Yes |
Face recognition | Yes |
Speakerphone | Yes |
Navigation | |
GPS (satellite) | Yes |
GLONASS | Yes |
BeiDou | Yes |
Galileo | Yes |
Position location | Yes |
Multimedia | |
Speakers | Stereo |
Audio system | Dolby Atmos |
Audio formats supported | 3GA,AAC,AMR,APE,AWB,DFF,DSF,FLAC,IMY,M4A,MID,MIDI,MP3,MXMF,OGA,OGG,RTTTL,RTX,WAV,XMF |
Video formats supported | 3G2,3GP,AVI,FLV,M4V,MKV,MP4,WEBM |
Software | |
Platform | Android |
Operating system installed | Android 12 |
Virtual assistant | Samsung Bixby |
Battery | |
Battery capacity | 3700 |
Sensors | |
Proximity sensor | Yes |
Accelerometer | Yes |
Ambient light sensor | Yes |
Gyroscope | Yes |
Barometer | Yes |
Geomagnetic sensor | Yes |
Hall sensor | Yes |
Weight & dimensions | |
Width | 71.9 |
Depth | 6.9 |
Height | 165.2 |
Weight | 187 |
Folded width | 71.9 |
Folded depth | 17.1 |
Folded height | 84.9 |
Certificates | |
Head SAR (EU) | 1.151 |
Body SAR (EU) | 1.198 |
Extremities SAR (EU) | 2.75 |
Packaging content | |
Quick start guide | Yes |
Cables included | USB Type-C |
SIM card ejector pin | Yes |
Technical details | |
Repairability index | 7.6 |
Buykingston order despatch times:
We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.
These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).
We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.
Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.
Despatch times do not apply to UK public holidays.
Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.
Our warehouse reserves the right to upgrade the delivery method you select on your order.
Our available delivery options*
Contact us for a shipping quote.
*All delivery times are estimated unless stated.
Product Returns Note
Buykingston offers a very flexible and hassle free returns policy. If
for whatever reason you are not happy with the item purchased you can return
it to us within 12months for a refund (for unused and unopened
items) or within 30 days on opened and used items for a refund. This
applies to items purchased direct through Buykingston only.
Our 30 Day Returns Money Back Guarantee Satisfaction
Guarantee:
For items opened and used and that are returned in a resellable
condition.
Our 365 Day Returns Money Back Guarantee Satisfaction
Guarantee:
For items that remain sealed and unused.
Some items are excluded from our moneyback guarantee unless they have developed a fault. These include;
- Headphones
- Earphones
- Custom made and designed products such as flash memory products with
custom logo’s on them. E,g USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
On opened items 30 days from date of receipt or expected date of receipt on
non tracked items.
On unopened items 365 days.
How do i go about returning my order?
Please contact us via our contact page with
your order number where we will present you with an RMA number and returns
label.
Do i need to contact you before returning my order?
Yes, to obtain an RMA number.
Does my item have to include its original packaging?
Yes for items that fall within our 30 day money back guarantee and our 365
day returns. Of course for faulty items we realise you may no longer have
the packaging.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
direct for assistance.
Please ensure you have read and comply in full with Section 11 & 13 of our terms and conditions which you can read here in full.