Apple Watch 42mm (1st gen) vs Asus Zenfone 4 Pro ZS551KL

N/A

GSM 850, 900, 1800, 1900

-

HSDPA 800, 850, 900, 1700(AWS), 1800, 1900, 2100

-

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 19(800), 20(800), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - Global, Taiwan; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 41(2500) - US, Canada, Brazil; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500) - India

-

42.2 Mbps

-

5.76 Mbps

-

LTE-A, (3CA) Cat12, 600 Mbps download, 150 Mbps upload

No

Yes

No

Yes

2014-9

2017-8

2015-4

2017-10

Stainless Steel/Ceramic back

-

No

Hybrid Dual SIM (Nano-SIM, dual stand-by)

42 mm

156.9 mm

35.9 mm

75.6 mm

10.5 mm

7.6 mm

50 g

175 g

IPX7 certified, 1 m and 30 minutes

-

Black Link Bracelet, Blue/Stone/White/Storm Gray Leather Loop, Brown/Black/Blue/Marine Blue Buckle, Link Bracelet, Pearl Woven Nylon, Silver/Space Black Milanese Loop, Space Black Stainless Steel/Black, Stainless Steel/Red, White

Moonlight white, Pure Black

1.65 inches

5.5 inches

390 x 312 pixels

1080 x 1920 pixels

303 ppi

401 ppi

Sapphire crystal glass

Corning Gorilla Glass 5

Yes

Yes, max 10 fingers

3D Touch display, 450 nits

-

-

Octa-core

520 MHz ARM Cortex-A7

2.45 GHz Kryo Quad-core

quad-core 1.9 GHz Kryo

Apple S1

Qualcomm MSM8998 Snapdragon 835

PowerVR SGX543

Adreno 540

512 MB

6 GB

8 GB

64, 128 GB

microSD(uses second SIM slot)

-

256 GB

watchOS 1.0

Android 7.1.1 (Nougat)

No

Yes

Yes

Yes, dual speakers

Vibration; Ringtones

Vibration; MP3, WAV ringtones

No

-

-

FM radio

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac

-

Yes

-

Yes

-

Yes

Type-C reversible connector

v4.0

v5.0

-

Yes

-

Yes

-

Yes

-

Yes

No

Yes, with A-GPS

-

Yes

-

Yes

-

Yes

-

MMS

-

Push Email

Push Mail

-

Accelerometer, gyro, heart rate

Fingerprint (front-mounted), accelerometer, color spectrum, compass, gyro, proximity

-

HTML5

No

-

250 mAh

3600 mAh

-

50% in 32 min

-

27 h 30 min

18 h

-

-

Dual

12 MP, f/1.7 , 25 mm, 2x optical zoom

16 MP, 50 mm

-

2160p@30fps, 1080p@30/60fps, 1080p@120fps, 720p@240fps

-

laser/phase detection autofocus

-

LED flash

-

4-axis optical image stabilization

-

25mm (1/2.55" sensor size, 1.4 µm pixel size), 50mm (1/3.1" sensor size, 1.0 µm pixel size), geo-tagging, touch focus, face detection, HDR, panorama

8 MP, f/1.9 , 22 mm, 1.4 µm

-

1080p