OPPO A 6x 4G vs TCL 4042 S

Our Verdict: For screen resolution, OPPO A 6x 4G is easier to recommend because it brings 720 x 1570 resolution rather than 240 x 320, plus 6,500 mAh compared with 1,500 mAh. That does not leave TCL 4042 S without a case: a 111g body against 210g helps when you want the lighter phone. Most buyers should choose OPPO A 6x 4G for a higher-resolution display; TCL 4042 S is the calmer pick for a lighter handset.

The 4042 S is the cheaper one to own: around £188 over a typical contract, £69 less than the A5 2020 6x 4G.

Screen
6.75" 2.8"
Display
IPS LCD QVGA
Resolution
720 x 1570 240 x 320
Pixels Per Inch
256 143
Rear Camera
13 Megapixels N/A
Front Camera
5 Megapixels N/A
Chipset
Qualcomm SM6225 Snapdragon 685 (6 nm) UMS9117-L (T107)
Battery
6,500 mAh 1,500 mAh
Storage
128GB
OS
Android Mocor (RTOS)
SIM Type
Nano SIM Nano SIM
Connectivity
Up to 4G Up to 4G
Wi-Fi
802.11 a/b/g/n/ac -
Bluetooth
5.0 with A2DP, LE, apt-X 5.0
Dimensions
166.6 x 78.5 x 8.6 mm 137.48 x 57.5 x 13.65 mm
Weight
210 grams 111 grams
Water Resistance
IP64 dust tight and water resistant (water splashes) Not rated
Contracts
£8.99/mo (£9.00 upfront) £7.50/mo (£0.00 upfront)
SIM-free
£117.00 -

Prices updated 27 July 2026

OPPO A 6x 4G OPPO A 6x 4G TCL 4042 S TCL 4042 S
Screen 6.75" 2.8"
Display IPS LCD QVGA
Resolution 720 x 1570 240 x 320
Pixels Per Inch 256 143
Rear Camera 13 Megapixels N/A
Front Camera 5 Megapixels N/A
Chipset Qualcomm SM6225 Snapdragon 685 (6 nm) UMS9117-L (T107)
Battery 6,500 mAh 1,500 mAh
Storage 128GB
OS Android Mocor (RTOS)
SIM Type Nano SIM Nano SIM
Connectivity Up to 4G Up to 4G
Wi-Fi 802.11 a/b/g/n/ac -
Bluetooth 5.0 with A2DP, LE, apt-X 5.0
Dimensions 166.6 x 78.5 x 8.6 mm 137.48 x 57.5 x 13.65 mm
Weight 210 grams 111 grams
Water Resistance IP64 dust tight and water resistant (water splashes) Not rated
Contracts £8.99/mo
£9.00 upfront
£7.50/mo
£0.00 upfront
SIM-free £117.00 -
Prices updated 27 July 2026
Deals Deals

Cheapest Deals

OPPO A 6x 4G
OPPO A 6x 4G

24 Months

128GB

Black Purple

25GB

Data

Unlimited

Unlimited

£8.99 per month, £9 upfront.

TCL 4042 S
TCL 4042 S

24 Months

128MB

Dark Night Grey

0.5GB

Data

Unlimited

Unlimited

£7.50 per month, with FREE phone.

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Frequently Asked Questions

Is the OPPO A 6x 4G or TCL 4042 S cheaper on contract?

Based on total cost of ownership, the TCL 4042 S is cheaper on contract at £188.16 over the life of the deal from £7.50 per month with £0.00 upfront.

Which has the better screen, the OPPO A 6x 4G or TCL 4042 S?

The OPPO A 6x 4G has the bigger screen at 6.8" compared to the TCL 4042 S's 2.8", the OPPO A 6x 4G has the sharper display at 256 pixels per inch versus 143, and the OPPO A 6x 4G uses a IPS LCD panel while the TCL 4042 S has a QVGA.

Which has the better camera, the OPPO A 6x 4G or TCL 4042 S?

The OPPO A 6x 4G features a 13 Megapixels rear camera, while the TCL 4042 S has a N/A rear camera. Both devices also have front-facing cameras for selfies and video calls.

What processors do the OPPO A 6x 4G and TCL 4042 S use?

The OPPO A 6x 4G is powered by the Qualcomm SM6225 Snapdragon 685 (6 nm), while the TCL 4042 S uses the UMS9117-L (T107).

Which is easier to carry and hold, the OPPO A 6x 4G or TCL 4042 S?

The TCL 4042 S is the more portable of the two: it's 99g lighter at 111 grams, it's also the more compact phone at 137.48 x 57.5 x 13.65 mm, the OPPO A 6x 4G is slimmer at 8.6mm thick.

Which is more water resistant, the OPPO A 6x 4G or TCL 4042 S?

The OPPO A 6x 4G is rated IP64 dust tight and water resistant (water splashes), while the TCL 4042 S is rated Not rated.

What operating system do the OPPO A 6x 4G and TCL 4042 S run?

The OPPO A 6x 4G runs Android and the TCL 4042 S runs Mocor (RTOS). This is one of the biggest factors when choosing between the two, as each ecosystem has its own apps, services and features.