Sony Ericsson txt Pro (CK15a) vs Xiaomi Redmi Note 9 (128GB/4GB)

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Side by side comparison between Sony Ericsson txt Pro vs Xiaomi Redmi Note 9 phones, differences, pros, cons and full specifications. What's the better?

8/4/2020 2:52 PM, updated: 1/19/2023 2:42 AM

Compare Xiaomi Redmi Note 9 X Sony Ericsson txt Pro (CK15a) 02Points

Specifications Compare Models Pictures

3"
TFT

240x400

3.1
MP

64MB
RAM

Single-core

1000
mAh

(Removable)

31Points Xiaomi Redmi Note 9 (128GB/4GB) Compare Sony Ericsson txt Pro X

Specifications Compare Models Pictures

6.53"
IPS

1080x2340

48
MP

13mp

4GB
RAM

Octa-core

5020
mAh

(Non removable)

What's the better phone? Xiaomi Redmi Note 9 (128GB/4GB)

The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!

2 Advantages Sony Ericsson txt Pro (CK15a)	vs	31 Advantages Xiaomi Redmi Note 9 (128GB/4GB)
+100 grams (3.5 ounces)99% Lighter	vs	199 grams (6.97 ounces)
+LiPo: li-ion polymer (Removable)Advantage Removable battery can be replaced easily	vs	LiPo: li-ion polymer (Non removable)
64MB SDRAM	vs	+4GB LPDDR4X63 times More RAM memory. Typically more responsive and better for multitasking.
256MB (100MB available)	vs	+128GB (106GB available)1084 times More internal storage for applications and files
Until 32GB microSD, microSDHC	vs	+Until 512GB microSD, microSDXC15 times More external storage for files using memory cards
18 millimeters (0.71 inches)	vs	+8.9 millimeters (0.35 inches)102% Thinner
TFT LCD	vs	+TFT IPS LCDAdvantage TFT IPS LCD display is brighter and more vivid
260 thousand	vs	+16 million61 times More colors on the screen is better quality images and videos
240x400 pixels	vs	+1080x2340 pixels25 times Higher resolution screen
155 PPI	vs	+395 PPI155% Crisper display of text, images and videos because it has more pixels per inch (ppi)
3"	vs	+6.53"118% Larger screen
(back) 3.1MP	vs	+(quad camera) 48MP + 8MP + 2MP + 2MP18 times Higher resolution main camera
Not supported	vs	+LED flashAdvantage The LED flash helps in dark places or in low light
Not supported	vs	+PDAF: phase detection autofocusAdvantage Best autofocus type for taking pictures
Not supported	vs	+HDR photo on both camerasAdvantage The HDR technology produced photos with more detail in dark areas
Not supported	vs	+(front) 13MPAdvantage A front-camera is best for taking selfies
QVGA (320x240)	vs	+Full HD (1920x1080)26 times More image quality for recording videos with the primary camera
10 apps	vs	+3500000 apps (Google Play Store)349999 times More apps available to download and use
2G EDGE	vs	+4G LTE-AAdvantage The 4G LTE-A network is newer and faster
(2G EDGE) 0.236 Mbps	vs	+(4G LTE-A) 300 Mbps1270 times Faster for surfing the internet and download files
Single	vs	+MultitouchAdvantage Better touch type. Multitouch allows to use more fingers at the same time.
Not supported	vs	+CompassAdvantage Sensors help you use the device
Not supported	vs	+Face unlockAdvantage Sensors help you use the device
Not supported	vs	+Fingerprint sensor (rear-mounted)Advantage Sensors help you use the device
Not supported	vs	+GyroscopeAdvantage Sensors help you use the device
1000 mAh	vs	+5020 mAh4 times Battery - higher amperage (mAh) allows more device usage time, but it also depends on the hardware and use
1 slot (Single-SIM) (dedicated slot)	vs	+2 slots (Dual-SIM) (dedicated slot)Advantage You can have more mobile carriers/operators on the same device.
Not supported	vs	+A-GPS, GeoTagging, GLONASS, GALILEO, BeiDouAdvantage It's harder to lose yourself in the city with GPS on your device
802.11 b/g [wifi3]	vs	+802.11 a/b/g/n/ac [wifi5]Advantage WiFi 802.11 a/b/g/n/ac [wifi5] is newer and faster
2.1 + A2DP	vs	+5.0 + A2DP/LEAdvantage Bluetooth 5.0 + A2DP/LE is newer and faster
MicroUSB 2.0	vs	+Type-CAdvantage Reversible connector, you can stick in a USB-C cable any which way; either side is up.
HTML, XHTML	vs	+HTML, XHTML, HTML5Advantage Better sites viewing on the internet
Not supported	vs	+Water repellent nano-coating (don't immerse)Advantage Protection against water allows you talk to your friends in the rain, for example

9 Common items in both devices

Only digital zoom

Capacitive

Accelerometer

Ambient light sensor

Proximity sensor

3.5mm jack

FM (RDS) / FM

+2 specs and more in the table below

Check the comparison table below for more items that are not evaluated in comparison score above.

Highlight differences

📱 Model features
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Change model		Choose the model
Model	txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Other model names	Sony Ericsson txt Pro CK15, Sony txt Pro	Mi Redmi Note 9 CX296VRD, CX296CIN, M2003J15SS/2003J15SC
Country or region available	(Latin America), Canada, USA	Brazil, China, India
Brand	Sony Ericsson	Xiaomi
Release date	7/1/2011	5/12/2020, Announced: 4/30/2020
Depth	18 millimeters (0.71 inches)	8.9 millimeters (0.35 inches)
Size (width x height)	52 x 93 millimeters (2.05 x 3.66 in)	77.2 x 162.3 millimeters (3.04 x 6.39 in)
Weight	100 grams (3.5 ounces)	199 grams (6.97 ounces)
Build, materials	feature not registered	Plastic body, glass front
Protection against water and others	Not supported	Water repellent nano-coating (don't immerse)
📲 Display
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Display type	TFT LCD	TFT IPS LCD
Screen size	3" inches	6.53" inches
Screen-to-body ratio	~53% (screen-to-body ratio)	~83.5% (screen-to-body ratio)
Display resolution	240x400 pixels	1080x2340 pixels (19.5:9)
Touchscreen	Capacitive Single touch 1-point	Capacitive Multitouch
Pixel density (dot pitch)	155 PPI	395 PPI
Colors	260 thousand	16 million
Scratch-resistant glass	Scratch-resistant glass	Gorilla Glass 5
Refresh rate	feature not registered	60Hz
Display features	feature not registered	450nits[typ]
🤖 Operating System
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
System version	Proprietary OS	Android 10
Firmware update	feature not registered	Android 11
User Interface	feature not registered	MIUI 11 / 12
⚙️ Processor
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Chipset	32bit	64bit: MediaTek Helio G85 (12nm)
CPU	Single-core, 1 processor: Single-core PNX-4910 (Single-core)	Octa-core, 2 processors: 2x 2GHz ARM-Cortex-A75 (Dual-core) 6x 1.8GHz ARM-Cortex-A55 (Hexa-core)
GPU graphical controller	feature not registered	ARM Mali-G52 MC2 (1GHz)
Performance (benchmark)	feature not registered	AnTuTu: 200451 (v8) Geekbench: 1292 (v5.1)
💽 Memory and storage
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
RAM memory	64MB SDRAM	4GB LPDDR4X
Internal storage	256MB (100MB available)	128GB (106GB available) eMMC 5.1
External storage	Until 32GB microSD, microSDHC (dedicated slot)	Until 512GB microSD, microSDXC (dedicated slot)
📶 Mobile networks
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Dual-SIM	Not supported	Dual-SIM Standby - Call active on one sim card (dedicated slot)
SIM card	1 slot (Single-SIM) Standard mini-SIM (2FF)	2 slots (Dual-SIM) nano-SIM (4FF)
Maximum Download / Upload	0.236 Mbps	300/150 Mbps
Network technology	2G	2G, 3G, 4G
Frequency, bands	Expand band details Collapse details
GSM MHz band	Quad-Band 850/900/1800/1900	Quad-Band 850/900/1800/1900
Primary 2G network	GSM 850/900/1800/1900	GSM 850/900/1800/1900
Primary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Primary 4G network	Not supported	LTE Cat7 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE
Primary 5G network	Not supported	Not supported
Primary data network	GPRS, EDGE	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
Secondary 2G network	Not supported	GSM 850/900/1800/1900
Secondary 3G network	Not supported	UMTS 850/900/1700/1900/2100
Secondary 4G network	Not supported	LTE Cat7 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) VoLTE
Secondary data network	Not supported	GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
📷 Camera
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Back camera (main camera)	3.1 megapixels	(quad camera) 48 megapixels 8MP ultrawide f/2.213mm1/4"1.12µm118° 2MP macro f/2.41.75µmAF 2MP depth f/2.41/5"1.7µm
Main camera resolution	2048x1536 pixels	8000x6000 pixels
Video recording (primary)	QVGA (320x240)	Full HD (1920x1080) 30 fps
Flash	Not supported	LED flash
Focal aperture	feature not registered	f/1.8 (aperture)
Focal length	feature not registered	26mm lens
Sensor size	feature not registered	1/2" inches
Pixel size	feature not registered	0.8µm pixel
Autofocus	Not supported	PDAF: phase detection autofocus
Touch focus	Not supported	Supported
Image stabilization	feature not registered	EIS: Digital stabilization
Zoom	Only digital zoom	Only digital zoom
Face/smile detection	Not supported	Face detection, Smile detection
BSI sensor	Not supported	Supported
HDR	Not supported	HDR photo on both cameras
Camera extras	feature not registered	feature not registered
📸 Front camera
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Front camera (secondary)	Not supported	13 megapixels
Front camera resolution	Not supported	4128x3096 pixels
Video recording (secondary)	Not supported	Full HD (1920x1080)
Front flash	Not supported	Not supported
Focal aperture	feature not registered	f/2.3 (aperture)
Focal length	feature not registered	29mm lens
Sensor size	feature not registered	1/3.06" inches
Pixel size	feature not registered	1.12µm pixel
🔉 Sound and multimedia
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Loudspeaker	Supported	Mono sound (not stereo)
Active noise cancellation	Not supported	2 microphones or more
Radio	FM (RDS)	FM
TV	Not supported	Not supported
Video formats	MP4, H.263	MP4, H.265, H.264, H.263, XviD, MKV
Audio formats	MP3, WAV, WMA, eAAC+	MP3, WAV, WMA, eAAC+, FLAC
🔌 Connectivity
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
USB	MicroUSB 2.0	USB 2.0 Type-C, USB OTG On-The-Go
Audio output	3.5mm jack	3.5mm jack
TV output	Not supported	USB Type-C (reversible)
Bluetooth	2.1 + A2DP	5.0 + A2DP/LE
WiFi	802.11 b/g [wifi3] (2.4GHz)	802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot
DLNA	Not supported	Not supported
GPS	Not supported	A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou
NFC	Not supported	Not supported
Infrared port	Not supported	Supported
🧭 Sensors
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Sensors	Accelerometer Ambient light sensor Proximity sensor	Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (rear-mounted) Gyroscope Proximity sensor
Vibrating alert	Supported	Supported
🔋 Battery
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Battery type	LiPo: li-ion polymer (Removable) BST-43	LiPo: li-ion polymer (Non removable)
Battery capacity	1000 mAh	5020 mAh
Charger, watts	Wired charging	18W Wired fast charging 9W Reverse charging by cable
Inductive / wireless charging	feature not registered	Not supported
Talk time autonomy	5.2 hours	33 hours (1.4 days)
Standby	400 hours (16.7 days)	feature not registered
➕ Other features
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
Call control	Voice recorder	Voice dialing, Voice recorder, Voice commands
Messaging	SMS (T9), MMS, E-mail	SMS (T9), MMS, E-mail, Push mail
Hands-free calling	Supported	Supported
Video calling	Not supported	Supported
Ringtones	Polyphonic and customized	Polyphonic and customized
Web browser	HTML, XHTML	HTML, XHTML, HTML5
Antenna	Internal antenna	Internal antenna
Qwerty physical keyboard	Retractable QWERTY keyboard	Not supported
Miscellaneous	• Colors: Black, White, Pink • Facebook and Twitter • Google Mail and Google Talk • Java framework	• Colors: Forest Green, Midnight Grey, Polar White • 22.5W charger (18W phone support)
☢️ Radiation rate
	Sony Ericsson txt Pro (CK15a)	Redmi Note 9 (128GB/4GB)
SAR 1.6W/kg (USA, Mexico, etc.)	feature not registered	0.84W/kg (head), 0.9W/kg (body)
SAR 2W/kg (Europe, UK, etc.)	0.8W/kg (head)	0.8W/kg (head), 1.14W/kg (body)