Today Samsung is holding its second Mobile Unpacked event for the year, announcing the new Galaxy Z Flip 3 and the new Galaxy Z Fold 3. It’s a bit of an unusual Unpacked event compared to past years as this time around and for this year we won’t be seeing a new Galaxy Note device.

The new Galaxy Z devices follow as iterations to their predecessors – the original Z Flip announced in February last year and Z Flip 5G later in August, and the Z Fold 2 which was also announced around the same time in 2020.

Both devices are obvious characterised by their folding form-factor designs, which Samsung this year has iterated on, included new hardware internals, and generally just polished their functionality compared to their predecessors. Samsung’s focus towards foldables seems to result as the market generally is finding it hard to differentiate oneself in-between competitors.

Galaxy Z Phones 2021
  Galaxy Z Flip 3 Galaxy Z Fold 3
SoC Qualcomm Snapdragon 888 
1x Cortex-X1 @ 2.84GHz
3x Cortex-A78 @ 2.42GHz
4x Cortex-A55 @ 1.80GHz

Adreno 660 @ 840MHz
DRAM 8GB LPDDR5-6400 12GB LPDDR5-6400
Primary Display 6.7" AMOLED
2640 x 1080

120Hz Refresh
7.6" AMOLED Foldable
2208 x 1768

120Hz Refresh
Secondary Display 1.9"
260 x 512
2260 x 832

120Hz Refresh
Size Height 166mm (unfolded) 158.2mm
Width 72.2mm 67.1mm (folded)
128.1mm (unfolded)
Depth 15.9 - 17.1mm (folded)
6.9mm (unfolded)
14.4 - 16.0mm (folded)
6.4mm (unfolded)
Weight 183g 271g
Battery Capacity 3300mAh (Typical)

4400mAh (Typical)

Wireless Charging 10W 10W
Rear Cameras
Main 12MP 1.4µm DP PDAF


26.8mm eq.
12MP 1.8µm DP PDAF


26.8mm eq.
Telephoto -
12MP 1.0µm


51mm eq.
- -
Ultra-Wide 12MP 1.12µm

123° FoV / 13mm eq.
Extra - -
Front Camera Hold-Punch (Unfolded)
10MP 1.22µm
25.7mm eq.
Under-Display (unfolded)
4MP 2.0µm

Hole-Punch (folded)
10MP 1.22µm
25.7mm eq.
Storage 128 / 256GB
UFS 3.1
256 / 512GB
UFS 3.1
Wireless (local) 802.11ax (Wifi 6),
Bluetooth 5.1
802.11ax (Wifi 6E),
Bluetooth 5.2
Cellular 4G + 5G NR NSA+SA Sub-6GHz + mmWave
Special Features Under-screen fingerprint sensor
Stereo speakers

It flips
Under-screen fingerprint sensor
Stereo speakers

It folds
Splash, Water, Dust Resistance IPx8 IPx8
Dual-SIM nano-SIM + eSIM 2x nano-SIM + eSIM
Launch OS Android 11 w/ OneUI 3.1
Launch Price 8+128GB: $999 / 1059€
8+256GB: $ / 1109€
12+256GB: $1799 / 1799€
12+512GB: $ / 1899€

Starting off with the hardware, the new Galaxy Z devices are now powered by Qualcomm’s new Snapdragon 888 chipset for all global variants of the phones, which should give the phones excellent performance. It’s to be noted that these foldable phones have likely less thermal dissipation capabilities as the more traditional “bar” style devices, so it’ll be interesting to see how Samsung handles the increased power envelope of the new SoC compared to last year’s Snapdragon 865.

The phones come with 8GB of RAM on the Z Flip 3 and 12GB on the Z Fold 3. Storage options for the Flip are 128 or 256GB, while the Fold doubles it to 256GB or 512GB – both UFS 3.1.

The Z Fold 3’s overall design hasn’t changed all that much from the Z Fold 2 – the internal screen is still a 7.6” 2208 x 1768 plastic AMOLED panel with the notable characteristic that it is flexible and foldable. It also continues the 120Hz refresh rate.

The larger change on the panel isn’t in regards to the panel itself but rather to the front camera, which is now using Samsung’s first ever iteration of an under-screen camera design. The camera sits underneath the screen panel and “sees through” the pixel matrix, which is now partially transparent besides for the actual pixel emitters. Samsung here only uses 4MP camera module, but with large 2µm pixels. The pixel density of the area above the camera module does not appear as dense as what we’ve seen presented by Xiaomi on the MIX4, however Samsung is deploying this technology on a foldable panel first so there might be larger differences and technical limitations to the various implementations.

What’s novel on the Fold 3 is the fact that Samsung has now also introduced a digitizer into the panel, allowing it to work alongside the S-Pen. Samsung has also introduced a new S-Pen with a rubber nib and spring pressure mechanism that is much gentler to the plastic screen compared to the traditional S-Pens for glass screens.


On the cover side of the Z Fold 3 we again also see a similar 6.2” display, although this year this panel has gained 120Hz refresh rate capabilities. The camera employed here is of the more traditional hole-punch design.

Z Fold 3 & Z Flip 3 folded

The overall dimensions of the Z Fold 3 are similar to its predecessor, a 158.2mm device height, and a folded with of 67.1mm that opens up to 128.1mm when unfolded. The device thickness is 6.4mm when unfolded, or 14.4mm when folded. The phone still remains extremely heavy at 271g, but does shave off a few grams compared to its predecessor. Included in that weight is a 4400mAh battery.

Samsung has introduced IPx8 rating for the new Z devices, meaning they’re now water resistant – which is actually quite a feat for a foldable device. Samsung has managed this to employ corrosion resistant mechanical elements in the hinge design, and enforcing water resistant rubber between the electrical elements of the two phone halves.

In terms of cameras, the Z Fold 3 does not appear to change anything in regards to the actual hardware: it’s still a 12MP 1.8µm sensor with f/1.8 as the main module, the same as we’ve seen on the S20 and S21 series. There’s a 2x optical 12MP 1.0µm f/2.4 with OIS telephoto module, and a 12MP 1.12µm ultra-wide with 13mm/123° FoV optics.

The Z Flip 3 differs from the Fold in that it folds in the vertical direction of a more classical flip-phone, rather than horizontally as its larger sibling. Similar to the Z Fold 3, the generational changes this year are rather minor besides the internal hardware upgrade.

In terms of design and the display, it’s again still a 6.7” 2640 x 1080 panel, but this year does gain 120Hz refresh rate.

Z Fold 3 & Z Flip 3 folded

The secondary small display on the rear of the phone has grown from 1.1” to 1.9” and is of a 260 x 512 resolution now, and in general the whole rear part of the phone here is quite different from the Z Flip 2 as Samsung has rearranged the two rear cameras in a vertical positioning alongside the larger secondary rear display.

Unfortunately, the camera hardware doesn’t seem to have seen upgrades, the main module is still a 12MP 1.4µm f/1.8 module (Galaxy S10 class generation), and the same 12MP 1.12µm specifications on the ultra-wide sensor.

Rather conservative upgrades

In general, this year’s Galaxy Z devices are really only evolutionary upgrades over last year’s options. While the Z Flip 3 has seen what I would call larger differentiation through the larger secondary display and camera rearrangement, the Z Fold 3, beyond the camera island redesign, can also only be really differentiated through the new under-screen inner front camera module.

While the Z Fold 3 remains extremely expensive starting at $1799, the Z Flip 3 starts a lower $999, $200 less than its predecessor, which might open up the phone to a larger potential audience.

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  • Spunjji - Friday, August 13, 2021 - link

    It also means that (once again) Silver5urfer's hyperbolic claims do not really match up to reality. It's a trade-off that imposes some more constraints on apps and developers in favour of better system behaviour for the majority of users, not a total destruction of multitasking.
  • flyingpants265 - Wednesday, August 11, 2021 - link

    Multitasked apps? Multitasking was never a thing on smartphones, it's a platform intentionally designed to do almost nothing but sell you junk (junk ads, junk products, junk info, junk media, junk games). That's the hard truth.

    The door has been wide open to make a real OS with real features for like 14 years now, but nobody ever bothered because they don't care. Just like nobody has displaced Microsoft Windows.
  • brontes - Wednesday, August 11, 2021 - link

    A single fold will always make an awkward pocket ratio phone that becomes an awkward aspect ratio phone gimmick. The demo pics once again show boxed multitasking because doing one thing on that aspect ratio just feels bad.

    Add make a trifold Z that is an actually useful 2in1 product already. I'd be thrilled with a chonky phone if it's normal phone shaped and unfolds into a normal tablet shape. If it can legitimately fill the role of two devices I'd otherwise be buying THEN you can even ask the price for both combined along with a "fancy tech" premium.
  • stanleyipkiss - Wednesday, August 11, 2021 - link

    I don't see this mentioned anywhere: do these phones have wireless charging?!

    Mersi Andrei, esti foarte tare.
  • stanleyipkiss - Wednesday, August 11, 2021 - link

    Nevermind. Found it.
  • Peskarik - Thursday, August 12, 2021 - link

    2k for a phone :-D
  • Oyeve - Thursday, August 12, 2021 - link

    But, you are not forced to buy it.
  • TresNugget - Thursday, August 12, 2021 - link

    The fingerprint sensors are on the power button not under the sceen
  • vol.2 - Thursday, August 12, 2021 - link

    Can anyone comment on screen damage over time with the foldable screens? I like to fit something in a pocket easy, but if the screen develops a crease mark, it's no good.
  • Tams80 - Thursday, August 19, 2021 - link

    They already have a crease. You don't notice if you don't look for it.

    As for durability: they've changee the material each time.

    I can only speak for the first Fold, but yes it did get microscratches very easily. But you can only see them with the display off and a light shined on them. You can't feel them due to it being plastic.

    Bigger scratches are quite easy to make if you are careless.

    I've had more issues with the glass back, and that's not really a Fold specific issue.

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