Device comparison

Two devices. One clear decision.

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Device A

Galaxy S23

Samsung · Phones

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Device B

OPPO · Phones

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Complete comparison

Every available group and stored value, aligned by field.

Differences only

LAUNCH DATE3 fields

NETWORK6 fields

Specification	Galaxy S23	A7 Pro Max
2G Bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (Dual SIM model Only)	GSM 850 / 900 / 1800 / 1900
3G Bands	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100	WCDMA B1 / B2 / B4 / B5 / B6 / B8 / B19
4G LTE	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - International; 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 38, 39, 40, 41, 46, 48, 66, 71 - USA	LTE-FDD B1 / B2 / B3 / B4 / B5 / B7 / B8 / B12 / B13 / B17 / B18 / B19 / B20 / B26 / B28 / B32 / B66; LTE-TDD B38 / B39 / B40 / B41 / B42 / B43 / B48
5G	SA/NSA/Sub6	n1 / n2 / n3 / n5 / n7 / n8 / n12 / n20 / n26 / n28 / n38 / n40 / n41 / n48 / n66 / n77 / n78
Speed	LTE, 5G	HSPA+, 4G LTE, 5G
Technology	5G/4G/LTE/GSM	GSM / WCDMA / LTE / 5G

BODY6 fields

Specification	Galaxy S23	A7 Pro Max
Build	Glass front (Gorilla Glass Victus 2), glass back (Gorilla Glass Victus 2), aluminum frame	Wave-textured 3D back panel, multi-colour breathing light; MIL-STD-810H drop and impact tested
Colors	—	Surfing Blue, Lunar Black
Dimensions	146.3 x 70.9 x 7.6 mm (5.76 x 2.79 x 0.30 in)	162.98 x 77.97 x 8.57 mm
IP Rating	IP68 dust/water resistant (up to 1.5m for 30 min)	IP66 / IP68 / IP69 and IP69K dust and water resistant
SIM	Nano-SIM + eSIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time)	Dual Nano-SIM, eSIM (carrier dependent)
Weight	168 g (5.93 oz)	226 g (Surfing Blue); 224 g (Lunar Black)

DISPLAY7 fields

Specification	Galaxy S23	A7 Pro Max
Brightness	1200 nits (HBM), 1750 nits (peak)	800 nits (typical), 1800 nits (HBM, typical)
Protection	Corning Gorilla Glass Victus 2	OPPO Crystal Guard glass
Refresh Rate	120Hz	60/90/120Hz adaptive; up to 330Hz touch sampling (select games)
Resolution	1080 x 2340 pixels, 19.5:9 ratio (~425 ppi density)	1272 x 2772 pixels (FHD+/1.5K), 450 ppi
Screen-to-body	~86.8%	93.5%
Size	6.1 inches, 90.1 cm2 (~86.8% screen-to-body ratio)	6.78 inches
Type	Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (HBM), 1750 nits (peak)	AMOLED (flexible), 1.07B colors (10-bit), 100% DCI-P3

PLATFORM4 fields

Specification	Galaxy S23	A7 Pro Max
CPU	Octa-core (1x3.36 GHz Cortex-X3 & 2x2.8 GHz Cortex-A715 & 2x2.8 GHz Cortex-A710 & 3x2.0 GHz Cortex-A510)	Octa-core (2x 2.4 GHz Cortex-A78 + 6x 2.0 GHz Cortex-A55)
Chipset	Qualcomm SM8550-AC Snapdragon 8 Gen 2 (4 nm)	Qualcomm Snapdragon 4 Gen 5 (4nm)
GPU	Adreno 740	Adreno 629 MC1 @ 840MHz
OS	Android 13, up to 4 major Android upgrades, One UI 6.1.1	ColorOS 16 (Android 16)

MEMORY5 fields

MAIN CAMERA3 fields

Specification	Galaxy S23	A7 Pro Max
Features	LED flash, auto-HDR, panorama	Power Flash, HI-RES, Portrait, Night, Panorama, PRO, Underwater mode, Dual-view video
MAIN CAMERA	50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS 10 MP, f/2.4, 70mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video	50 MP, f/1.8, 79° FOV (wide), 5P lens, AF, 2-axis OIS; 2 MP, f/2.4, 89° FOV (monochrome)
Video	8K@24/30fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS	1080p@30fps, 720p@30/60fps, OIS/EIS, 720p@120fps slow-motion

SELFIE CAMERA3 fields

Specification	Galaxy S23	A7 Pro Max
Features	HDR, HDR10+	AI Zoom Selfie (0.6x/1x/2x), Portrait, Night, Panorama, Retouch, Screen Fill Light, HI-RES
Selfie camera	12 MP, f/2.2, 26mm (wide), 1/3.2", 1.12µm, dual pixel PDAF	50 MP, f/2.0, 100° FOV (ultrawide), 5P lens
Video	4K@30/60fps, 1080p@30fps	1080p@30fps, 720p@30fps, EIS

SOUND2 fields

Specification	Galaxy S23	A7 Pro Max
3.5mm jack	No	No (USB Type-C digital headphones only)
Loudspeaker	Yes, with stereo speakers	Yes, stereo speakers

COMMUNICATION6 fields

Specification	Galaxy S23	A7 Pro Max
Bluetooth	5.3, A2DP, LE	5.1, LE; SBC, AAC, LDAC, aptX, aptX HD
NFC	Yes	Yes (region dependent)
Positioning	GPS, GLONASS, BDS, GALILEO	GPS, GLONASS, BDS, Galileo, QZSS; A-GNSS
Radio	No	—
USB	USB Type-C 3.2, OTG	USB Type-C, OTG
WLAN	Wi-Fi 802.11 a/b/g/n/ac/6e, tri-band, Wi-Fi Direct	Wi-Fi 802.11 a/b/g/n/ac (Wi-Fi 5), dual-band 2.4GHz/5GHz, Wi-Fi Display, hotspot

FEATURES1 field

Specification	Galaxy S23	A7 Pro Max
Sensors	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer	Fingerprint (under-display, optical), proximity, ambient light, color temperature, compass, accelerometer, gyroscope, infrared remote control

BATTERY3 fields

Specification	Galaxy S23	A7 Pro Max
Capacity	3900 mAh	10000 mAh (typical), 9700 mAh (rated)
Charging Type	25W wired, PD3.0, 50% in 30 min 15W wireless (Qi) 4.5W reverse wireless	80W wired SUPERVOOC / 80W UFCS, 27W reverse wired
Type	Li-Ion 3900 mAh	Silicon-carbon

ADDITIONAL INFORMATION9 fields

Specification	Galaxy S23	A7 Pro Max
Colors	Phantom Black, Cream, Green, Lavender, Graphite, Lime	Surfing Blue, Lunar Black
Compatibility	—	China model PYC110 (launched 4 Aug 2026) comes in 8GB+128GB, 8GB+256GB, 12GB+256GB and 12GB+512GB; global CPH2909 comes in 6GB+256GB (Europe) and 8GB+256GB (Asia). Global model: NFC depends on region; eSIM only with some carriers.
Cooling	—	SuperCool VC system with a 5,000 mm² vapor chamber (16.2% more VC area than the A6 Pro 5G, OPPO)
Environmental	—	Recyclability rate 92.88% (EU ecodesign info, CPH2909); China model passes China RoHS conformity assessment (OPPO)
Launch Price	—	CNY 2,199 (8GB+128GB), CNY 2,699 (12GB+256GB), CNY 2,999 (12GB+512GB) — China launch, 2026-08-04; EUR 599 (6GB+256GB) — Austria; MYR 2,499 RRP / MYR 2,299 with launch rebate (8GB+256GB) — Malaysia; THB 19,999 — Thailand (global rollout Sept 2026); TWD 17,990 (8GB+256GB) — Taiwan, on sale 2026-10-01
Launch Price (USD)	$294.00 (reference only — see Price in Nigeria above for the actual retail price)	—
Models	SM-S911B, SM-S911B/DS, SM-S911U, SM-S911U1, SM-S911W, SM-S911N, SM-S9110, SM-S911E, SM-S911E/DS	PYC110, CPH2909
Models and regions	—	PYC110 (China); CPH2909 (global — Austria, Malaysia, Thailand, Taiwan)
Price in Nigeria	₦390,000 (Seller price)	₦459,700 (Stored estimate)

TESTS2 fields

Specification	Galaxy S23	A7 Pro Max
Battery Endurance	—	Online video scrolling: ~40.3 h; MOBA gaming: ~15 h; video calling: ~14.7 h; standby: 39 days (OPPO Labs, global model). Kuai Keji review (China model): 20 h 41 min of continuous screen-on heavy-use simulation (Battery Dog app) from 100% to 20%
Performance	—	Geekbench 7: 834 single-core / 2,181 multi-core (pre-launch CPH2909 listing, 8GB RAM, reported by Gizmochina); Geekbench 6.7.1: 976 single-core / 2,250 multi-core (pre-launch PYC110 listing, 12GB RAM, reported by Notebookcheck)

SECURITY1 field

Specification	Galaxy S23	A7 Pro Max
Security	Biometric security: Fingerprint (under display, ultrasonic).	Optical under-display fingerprint, face recognition

EU LABEL1 field

Specification	Galaxy S23	A7 Pro Max
Battery	—	1300 charge cycles minimum (EU ecodesign info for CPH2909, OPPO Austria)