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

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

	OPPO A 6x 4G	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

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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.